Market snapshot: Oct 21, 2026, 3:00 AM UTC. Prices may have changed since this snapshot.

GroupKALSHI

Event GroupKALSHIFinancials

S&P price range on Oct 21, 2026 at 4pm EDT?

Reported volume

K 7.73 contracts

Events

Markets

Trade on Kalshi

S&P price range on Oct 21, 2026 at 4pm EDT?

Vol

K 7.73 contracts

Events

Markets

Kalshi

Current odds

Snapshot from Oct 21, 2026, 3:00 AM UTC

As of Oct 21, 2026, 3:00 AM UTC, the highest-priced outcome on Kalshi is 7,700 to 7,724.9999 at 14.5%.

Kalshi

7,700 to 7,724.999914.5%
7,725 to 7,749.999914%
7,750 to 7,774.999913.5%
7,775 to 7,799.999911.5%
7,675 to 7,699.999911.5%

Yes prices. They are not order quotes; check each platform's rules, fees and live prices before trading.

Price ChartContract price history

30 markets tracked

Historical observations can differ from current quotes. Kalshi points are hourly trade averages.

Saved prices are comparisons, not executable quotes. A price difference does not establish arbitrage. Check both contracts, live order prices, fees and available size.

Will the S&P 500 be between 7700 and 7724.9999 on Oct 21, 2026 at 4pm EDT?

No data available

Single-Platform Markets(30)

Market	Platform	Price
Will the S&P 500 be between 7700 and 7724.9999 on Oct 21, 2026 at 4pm EDT?	Kalshi	14.5%
Will the S&P 500 be between 7725 and 7749.9999 on Oct 21, 2026 at 4pm EDT?	Kalshi	14.0%
Will the S&P 500 be between 7750 and 7774.9999 on Oct 21, 2026 at 4pm EDT?	Kalshi	13.5%
Will the S&P 500 be between 7775 and 7799.9999 on Oct 21, 2026 at 4pm EDT?	Kalshi	11.5%
Will the S&P 500 be between 7675 and 7699.9999 on Oct 21, 2026 at 4pm EDT?	Kalshi	11.5%
Will the S&P 500 be between 7800 and 7824.9999 on Oct 21, 2026 at 4pm EDT?	Kalshi	9.5%
Will the S&P 500 be between 7650 and 7674.9999 on Oct 21, 2026 at 4pm EDT?	Kalshi	9.5%
Will the S&P 500 be between 7825 and 7849.9999 on Oct 21, 2026 at 4pm EDT?	Kalshi	9.0%
Will the S&P 500 be between 7625 and 7649.9999 on Oct 21, 2026 at 4pm EDT?	Kalshi	8.0%
Will the S&P 500 be between 7525 and 7549.9999 on Oct 21, 2026 at 4pm EDT?	Kalshi	7.5%
Will the S&P 500 be between 7975 and 7999.9999 on Oct 21, 2026 at 4pm EDT?	Kalshi	6.5%
Will the S&P 500 be between 7875 and 7899.9999 on Oct 21, 2026 at 4pm EDT?	Kalshi	6.5%
Will the S&P 500 be between 7550 and 7574.9999 on Oct 21, 2026 at 4pm EDT?	Kalshi	6.5%
Will the S&P 500 be between 7925 and 7949.9999 on Oct 21, 2026 at 4pm EDT?	Kalshi	5.5%
Will the S&P 500 be between 7850 and 7874.9999 on Oct 21, 2026 at 4pm EDT?	Kalshi	5.5%
Will the S&P 500 be between 7600 and 7624.9999 on Oct 21, 2026 at 4pm EDT?	Kalshi	5.5%
Will the S&P 500 be between 7900 and 7924.9999 on Oct 21, 2026 at 4pm EDT?	Kalshi	5.0%
Will the S&P 500 be between 7575 and 7599.9999 on Oct 21, 2026 at 4pm EDT?	Kalshi	5.0%
Will the S&P 500 be between 7950 and 7974.9999 on Oct 21, 2026 at 4pm EDT?	Kalshi	4.5%
Will the S&P 500 be between 7500 and 7524.9999 on Oct 21, 2026 at 4pm EDT?	Kalshi	4.0%
Will the S&P 500 be between 7475 and 7499.9999 on Oct 21, 2026 at 4pm EDT?	Kalshi	4.0%
Will the S&P 500 be between 8000 and 8024.9999 on Oct 21, 2026 at 4pm EDT?	Kalshi	1.0%
Will the S&P 500 be between 7450 and 7474.9999 on Oct 21, 2026 at 4pm EDT?	Kalshi	1.0%
Will the S&P 500 be between 7425 and 7449.9999 on Oct 21, 2026 at 4pm EDT?	Kalshi	1.0%
Will the S&P 500 be above 8024.9999 on Oct 21, 2026 at 4pm EDT?	Kalshi	0.5%
Will the S&P 500 be below 7325 on Oct 21, 2026 at 4pm EDT?	Kalshi	0.5%
Will the S&P 500 be between 7400 and 7424.9999 on Oct 21, 2026 at 4pm EDT?	Kalshi	0.5%
Will the S&P 500 be between 7375 and 7399.9999 on Oct 21, 2026 at 4pm EDT?	Kalshi	0.5%
Will the S&P 500 be between 7350 and 7374.9999 on Oct 21, 2026 at 4pm EDT?	Kalshi	0.5%
Will the S&P 500 be between 7325 and 7349.9999 on Oct 21, 2026 at 4pm EDT?	Kalshi	0.5%

Rules & Resolution

Saved matching review

Needs review: no direct pair assessment is available.

A saved event match does not establish identical settlement. Pair reviews appear with each price comparison.

AI Analysis

Trader mode: Market mechanics, assumptions and risks

K 7.73 contracts

Reported volume · provider units

Saved contracts

Same-question pairs

Source snapshot: Oct 21, 2026, 3:00 AM UTC

About This Event

On Oct 21, 2026 at 4pm EDT If the end-of-day S&P 500 index value on October 21, 2026 is X Y then the market resolves to Yes. The market will close on October 21, 2026. The market will expire at the sooner of the first release of the data, or one week after October 21, 2026. Pursuant to the Kalshi Rulebook, the Exchange has modified the Source Agency and Underlying for indices markets. See the rules for more information.

AI-generated analysis based on market data. Not financial advice.

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Event: S&P price range on Oct 21, 2026 at 4pm EDT?
Source snapshot: Oct 21, 2026, 3:00 AM UTC
Reported event volume (provider units): K 7.73 contracts
Coverage: 30 of 30 saved contracts included.
Prices are saved observations, not executable quotes. Listed close dates do not promise settlement or payout time.

Contract: Will the S&P 500 be above 8024.9999 on Oct 21, 2026 at 4pm EDT?
Provider: kalshi; ID: kalshi-KXINX-26OCT21H1600-T8024.9999; status: active
Source: https://kalshi.com/markets/kxinx-26oct21h1600
Observed: Oct 21, 2026, 3:00 AM UTC
Listed close: Oct 28, 2026, 11:00 PM UTC
Reported volume: 0 contracts
Outcome Yes: 0.5%; 24h change unavailable
Outcome No: 99.5%; 24h change unavailable
Saved rules: If the end-of-day S&P 500 index value on October 21, 2026 is above 8024.9999, then the market resolves to Yes. Secondary rules: The market will close on October 21, 2026. The market will expire at the sooner of the first release of the data, or one week after October 21, 2026.

Pursuant to the Kalshi Rulebook, the Exchange has modified the Source Agency and Underlying for indices markets. See the rules for more information.

Contract: Will the S&P 500 be below 7325 on Oct 21, 2026 at 4pm EDT?
Provider: kalshi; ID: kalshi-KXINX-26OCT21H1600-T7325; status: active
Source: https://kalshi.com/markets/kxinx-26oct21h1600
Observed: Oct 21, 2026, 3:00 AM UTC
Listed close: Oct 28, 2026, 11:00 PM UTC
Reported volume: 0 contracts
Outcome Yes: 0.5%; 24h change unavailable
Outcome No: 99.5%; 24h change unavailable
Saved rules: If the end-of-day S&P 500 index value on October 21, 2026 is below 7325, then the market resolves to Yes. Secondary rules: The market will close on October 21, 2026. The market will expire at the sooner of the first release of the data, or one week after October 21, 2026.

Pursuant to the Kalshi Rulebook, the Exchange has modified the Source Agency and Underlying for indices markets. See the rules for more information.

Contract: Will the S&P 500 be between 8000 and 8024.9999 on Oct 21, 2026 at 4pm EDT?
Provider: kalshi; ID: kalshi-KXINX-26OCT21H1600-B8012; status: active
Source: https://kalshi.com/markets/kxinx-26oct21h1600
Observed: Oct 21, 2026, 3:00 AM UTC
Listed close: Oct 28, 2026, 11:00 PM UTC
Reported volume: 0 contracts
Outcome Yes: 1.0%; 24h change unavailable
Outcome No: 99.0%; 24h change unavailable
Saved rules: If the end-of-day S&P 500 index value on October 21, 2026 is between 8000-8024.9999, then the market resolves to Yes. Secondary rules: The market will close on October 21, 2026. The market will expire at the sooner of the first release of the data, or one week after October 21, 2026.

Pursuant to the Kalshi Rulebook, the Exchange has modified the Source Agency and Underlying for indices markets. See the rules for more information.

Contract: Will the S&P 500 be between 7975 and 7999.9999 on Oct 21, 2026 at 4pm EDT?
Provider: kalshi; ID: kalshi-KXINX-26OCT21H1600-B7987; status: active
Source: https://kalshi.com/markets/kxinx-26oct21h1600
Observed: Oct 21, 2026, 3:00 AM UTC
Listed close: Oct 28, 2026, 11:00 PM UTC
Reported volume: 0 contracts
Outcome Yes: 6.5%; 24h change unavailable
Outcome No: 93.5%; 24h change unavailable
Saved rules: If the end-of-day S&P 500 index value on October 21, 2026 is between 7975-7999.9999, then the market resolves to Yes. Secondary rules: The market will close on October 21, 2026. The market will expire at the sooner of the first release of the data, or one week after October 21, 2026.

Pursuant to the Kalshi Rulebook, the Exchange has modified the Source Agency and Underlying for indices markets. See the rules for more information.

Contract: Will the S&P 500 be between 7950 and 7974.9999 on Oct 21, 2026 at 4pm EDT?
Provider: kalshi; ID: kalshi-KXINX-26OCT21H1600-B7962; status: active
Source: https://kalshi.com/markets/kxinx-26oct21h1600
Observed: Oct 21, 2026, 3:00 AM UTC
Listed close: Oct 28, 2026, 11:00 PM UTC
Reported volume: 0 contracts
Outcome Yes: 4.5%; 24h change unavailable
Outcome No: 95.5%; 24h change unavailable
Saved rules: If the end-of-day S&P 500 index value on October 21, 2026 is between 7950-7974.9999, then the market resolves to Yes. Secondary rules: The market will close on October 21, 2026. The market will expire at the sooner of the first release of the data, or one week after October 21, 2026.

Pursuant to the Kalshi Rulebook, the Exchange has modified the Source Agency and Underlying for indices markets. See the rules for more information.

Contract: Will the S&P 500 be between 7925 and 7949.9999 on Oct 21, 2026 at 4pm EDT?
Provider: kalshi; ID: kalshi-KXINX-26OCT21H1600-B7937; status: active
Source: https://kalshi.com/markets/kxinx-26oct21h1600
Observed: Oct 21, 2026, 3:00 AM UTC
Listed close: Oct 28, 2026, 11:00 PM UTC
Reported volume: 0 contracts
Outcome Yes: 5.5%; 24h change unavailable
Outcome No: 94.5%; 24h change unavailable
Saved rules: If the end-of-day S&P 500 index value on October 21, 2026 is between 7925-7949.9999, then the market resolves to Yes. Secondary rules: The market will close on October 21, 2026. The market will expire at the sooner of the first release of the data, or one week after October 21, 2026.

Pursuant to the Kalshi Rulebook, the Exchange has modified the Source Agency and Underlying for indices markets. See the rules for more information.

Contract: Will the S&P 500 be between 7900 and 7924.9999 on Oct 21, 2026 at 4pm EDT?
Provider: kalshi; ID: kalshi-KXINX-26OCT21H1600-B7912; status: active
Source: https://kalshi.com/markets/kxinx-26oct21h1600
Observed: Oct 21, 2026, 3:00 AM UTC
Listed close: Oct 28, 2026, 11:00 PM UTC
Reported volume: 0 contracts
Outcome Yes: 5.0%; 24h change unavailable
Outcome No: 95.0%; 24h change unavailable
Saved rules: If the end-of-day S&P 500 index value on October 21, 2026 is between 7900-7924.9999, then the market resolves to Yes. Secondary rules: The market will close on October 21, 2026. The market will expire at the sooner of the first release of the data, or one week after October 21, 2026.

Pursuant to the Kalshi Rulebook, the Exchange has modified the Source Agency and Underlying for indices markets. See the rules for more information.

Contract: Will the S&P 500 be between 7875 and 7899.9999 on Oct 21, 2026 at 4pm EDT?
Provider: kalshi; ID: kalshi-KXINX-26OCT21H1600-B7887; status: active
Source: https://kalshi.com/markets/kxinx-26oct21h1600
Observed: Oct 21, 2026, 3:00 AM UTC
Listed close: Oct 28, 2026, 11:00 PM UTC
Reported volume: 0 contracts
Outcome Yes: 6.5%; 24h change unavailable
Outcome No: 93.5%; 24h change unavailable
Saved rules: If the end-of-day S&P 500 index value on October 21, 2026 is between 7875-7899.9999, then the market resolves to Yes. Secondary rules: The market will close on October 21, 2026. The market will expire at the sooner of the first release of the data, or one week after October 21, 2026.

Pursuant to the Kalshi Rulebook, the Exchange has modified the Source Agency and Underlying for indices markets. See the rules for more information.

Contract: Will the S&P 500 be between 7850 and 7874.9999 on Oct 21, 2026 at 4pm EDT?
Provider: kalshi; ID: kalshi-KXINX-26OCT21H1600-B7862; status: active
Source: https://kalshi.com/markets/kxinx-26oct21h1600
Observed: Oct 21, 2026, 3:00 AM UTC
Listed close: Oct 28, 2026, 11:00 PM UTC
Reported volume: 0 contracts
Outcome Yes: 5.5%; 24h change unavailable
Outcome No: 94.5%; 24h change unavailable
Saved rules: If the end-of-day S&P 500 index value on October 21, 2026 is between 7850-7874.9999, then the market resolves to Yes. Secondary rules: The market will close on October 21, 2026. The market will expire at the sooner of the first release of the data, or one week after October 21, 2026.

Pursuant to the Kalshi Rulebook, the Exchange has modified the Source Agency and Underlying for indices markets. See the rules for more information.

Contract: Will the S&P 500 be between 7825 and 7849.9999 on Oct 21, 2026 at 4pm EDT?
Provider: kalshi; ID: kalshi-KXINX-26OCT21H1600-B7837; status: active
Source: https://kalshi.com/markets/kxinx-26oct21h1600
Observed: Oct 21, 2026, 3:00 AM UTC
Listed close: Oct 28, 2026, 11:00 PM UTC
Reported volume: 0 contracts
Outcome Yes: 9.0%; 24h change unavailable
Outcome No: 91.0%; 24h change unavailable
Saved rules: If the end-of-day S&P 500 index value on October 21, 2026 is between 7825-7849.9999, then the market resolves to Yes. Secondary rules: The market will close on October 21, 2026. The market will expire at the sooner of the first release of the data, or one week after October 21, 2026.

Pursuant to the Kalshi Rulebook, the Exchange has modified the Source Agency and Underlying for indices markets. See the rules for more information.

Contract: Will the S&P 500 be between 7800 and 7824.9999 on Oct 21, 2026 at 4pm EDT?
Provider: kalshi; ID: kalshi-KXINX-26OCT21H1600-B7812; status: active
Source: https://kalshi.com/markets/kxinx-26oct21h1600
Observed: Oct 21, 2026, 3:00 AM UTC
Listed close: Oct 28, 2026, 11:00 PM UTC
Reported volume: 0 contracts
Outcome Yes: 9.5%; 24h change unavailable
Outcome No: 90.5%; 24h change unavailable
Saved rules: If the end-of-day S&P 500 index value on October 21, 2026 is between 7800-7824.9999, then the market resolves to Yes. Secondary rules: The market will close on October 21, 2026. The market will expire at the sooner of the first release of the data, or one week after October 21, 2026.

Pursuant to the Kalshi Rulebook, the Exchange has modified the Source Agency and Underlying for indices markets. See the rules for more information.

Contract: Will the S&P 500 be between 7775 and 7799.9999 on Oct 21, 2026 at 4pm EDT?
Provider: kalshi; ID: kalshi-KXINX-26OCT21H1600-B7787; status: active
Source: https://kalshi.com/markets/kxinx-26oct21h1600
Observed: Oct 21, 2026, 3:00 AM UTC
Listed close: Oct 28, 2026, 11:00 PM UTC
Reported volume: 0 contracts
Outcome Yes: 11.5%; 24h change unavailable
Outcome No: 88.5%; 24h change unavailable
Saved rules: If the end-of-day S&P 500 index value on October 21, 2026 is between 7775-7799.9999, then the market resolves to Yes. Secondary rules: The market will close on October 21, 2026. The market will expire at the sooner of the first release of the data, or one week after October 21, 2026.

Pursuant to the Kalshi Rulebook, the Exchange has modified the Source Agency and Underlying for indices markets. See the rules for more information.

Contract: Will the S&P 500 be between 7750 and 7774.9999 on Oct 21, 2026 at 4pm EDT?
Provider: kalshi; ID: kalshi-KXINX-26OCT21H1600-B7762; status: active
Source: https://kalshi.com/markets/kxinx-26oct21h1600
Observed: Oct 21, 2026, 3:00 AM UTC
Listed close: Oct 28, 2026, 11:00 PM UTC
Reported volume: 1 contracts
Outcome Yes: 13.5%; 24h change unavailable
Outcome No: 86.5%; 24h change unavailable
Saved rules: If the end-of-day S&P 500 index value on October 21, 2026 is between 7750-7774.9999, then the market resolves to Yes. Secondary rules: The market will close on October 21, 2026. The market will expire at the sooner of the first release of the data, or one week after October 21, 2026.

Pursuant to the Kalshi Rulebook, the Exchange has modified the Source Agency and Underlying for indices markets. See the rules for more information.

Contract: Will the S&P 500 be between 7725 and 7749.9999 on Oct 21, 2026 at 4pm EDT?
Provider: kalshi; ID: kalshi-KXINX-26OCT21H1600-B7737; status: active
Source: https://kalshi.com/markets/kxinx-26oct21h1600
Observed: Oct 21, 2026, 3:00 AM UTC
Listed close: Oct 28, 2026, 11:00 PM UTC
Reported volume: 1 contracts
Outcome Yes: 14.0%; 24h change unavailable
Outcome No: 86.0%; 24h change unavailable
Saved rules: If the end-of-day S&P 500 index value on October 21, 2026 is between 7725-7749.9999, then the market resolves to Yes. Secondary rules: The market will close on October 21, 2026. The market will expire at the sooner of the first release of the data, or one week after October 21, 2026.

Pursuant to the Kalshi Rulebook, the Exchange has modified the Source Agency and Underlying for indices markets. See the rules for more information.

Contract: Will the S&P 500 be between 7700 and 7724.9999 on Oct 21, 2026 at 4pm EDT?
Provider: kalshi; ID: kalshi-KXINX-26OCT21H1600-B7712; status: active
Source: https://kalshi.com/markets/kxinx-26oct21h1600
Observed: Oct 21, 2026, 3:00 AM UTC
Listed close: Oct 28, 2026, 11:00 PM UTC
Reported volume: 5.73 contracts
Outcome Yes: 14.5%; 24h change unavailable
Outcome No: 85.5%; 24h change unavailable
Saved rules: If the end-of-day S&P 500 index value on October 21, 2026 is between 7700-7724.9999, then the market resolves to Yes. Secondary rules: The market will close on October 21, 2026. The market will expire at the sooner of the first release of the data, or one week after October 21, 2026.

Pursuant to the Kalshi Rulebook, the Exchange has modified the Source Agency and Underlying for indices markets. See the rules for more information.

Contract: Will the S&P 500 be between 7675 and 7699.9999 on Oct 21, 2026 at 4pm EDT?
Provider: kalshi; ID: kalshi-KXINX-26OCT21H1600-B7687; status: active
Source: https://kalshi.com/markets/kxinx-26oct21h1600
Observed: Oct 21, 2026, 3:00 AM UTC
Listed close: Oct 28, 2026, 11:00 PM UTC
Reported volume: 0 contracts
Outcome Yes: 11.5%; 24h change unavailable
Outcome No: 88.5%; 24h change unavailable
Saved rules: If the end-of-day S&P 500 index value on October 21, 2026 is between 7675-7699.9999, then the market resolves to Yes. Secondary rules: The market will close on October 21, 2026. The market will expire at the sooner of the first release of the data, or one week after October 21, 2026.

Pursuant to the Kalshi Rulebook, the Exchange has modified the Source Agency and Underlying for indices markets. See the rules for more information.

Contract: Will the S&P 500 be between 7650 and 7674.9999 on Oct 21, 2026 at 4pm EDT?
Provider: kalshi; ID: kalshi-KXINX-26OCT21H1600-B7662; status: active
Source: https://kalshi.com/markets/kxinx-26oct21h1600
Observed: Oct 21, 2026, 3:00 AM UTC
Listed close: Oct 28, 2026, 11:00 PM UTC
Reported volume: 0 contracts
Outcome Yes: 9.5%; 24h change unavailable
Outcome No: 90.5%; 24h change unavailable
Saved rules: If the end-of-day S&P 500 index value on October 21, 2026 is between 7650-7674.9999, then the market resolves to Yes. Secondary rules: The market will close on October 21, 2026. The market will expire at the sooner of the first release of the data, or one week after October 21, 2026.

Pursuant to the Kalshi Rulebook, the Exchange has modified the Source Agency and Underlying for indices markets. See the rules for more information.

Contract: Will the S&P 500 be between 7625 and 7649.9999 on Oct 21, 2026 at 4pm EDT?
Provider: kalshi; ID: kalshi-KXINX-26OCT21H1600-B7637; status: active
Source: https://kalshi.com/markets/kxinx-26oct21h1600
Observed: Oct 21, 2026, 3:00 AM UTC
Listed close: Oct 28, 2026, 11:00 PM UTC
Reported volume: 0 contracts
Outcome Yes: 8.0%; 24h change unavailable
Outcome No: 92.0%; 24h change unavailable
Saved rules: If the end-of-day S&P 500 index value on October 21, 2026 is between 7625-7649.9999, then the market resolves to Yes. Secondary rules: The market will close on October 21, 2026. The market will expire at the sooner of the first release of the data, or one week after October 21, 2026.

Pursuant to the Kalshi Rulebook, the Exchange has modified the Source Agency and Underlying for indices markets. See the rules for more information.

Contract: Will the S&P 500 be between 7600 and 7624.9999 on Oct 21, 2026 at 4pm EDT?
Provider: kalshi; ID: kalshi-KXINX-26OCT21H1600-B7612; status: active
Source: https://kalshi.com/markets/kxinx-26oct21h1600
Observed: Oct 21, 2026, 3:00 AM UTC
Listed close: Oct 28, 2026, 11:00 PM UTC
Reported volume: 0 contracts
Outcome Yes: 5.5%; 24h change unavailable
Outcome No: 94.5%; 24h change unavailable
Saved rules: If the end-of-day S&P 500 index value on October 21, 2026 is between 7600-7624.9999, then the market resolves to Yes. Secondary rules: The market will close on October 21, 2026. The market will expire at the sooner of the first release of the data, or one week after October 21, 2026.

Pursuant to the Kalshi Rulebook, the Exchange has modified the Source Agency and Underlying for indices markets. See the rules for more information.

Contract: Will the S&P 500 be between 7575 and 7599.9999 on Oct 21, 2026 at 4pm EDT?
Provider: kalshi; ID: kalshi-KXINX-26OCT21H1600-B7587; status: active
Source: https://kalshi.com/markets/kxinx-26oct21h1600
Observed: Oct 21, 2026, 3:00 AM UTC
Listed close: Oct 28, 2026, 11:00 PM UTC
Reported volume: 0 contracts
Outcome Yes: 5.0%; 24h change unavailable
Outcome No: 95.0%; 24h change unavailable
Saved rules: If the end-of-day S&P 500 index value on October 21, 2026 is between 7575-7599.9999, then the market resolves to Yes. Secondary rules: The market will close on October 21, 2026. The market will expire at the sooner of the first release of the data, or one week after October 21, 2026.

Pursuant to the Kalshi Rulebook, the Exchange has modified the Source Agency and Underlying for indices markets. See the rules for more information.

Contract: Will the S&P 500 be between 7550 and 7574.9999 on Oct 21, 2026 at 4pm EDT?
Provider: kalshi; ID: kalshi-KXINX-26OCT21H1600-B7562; status: active
Source: https://kalshi.com/markets/kxinx-26oct21h1600
Observed: Oct 21, 2026, 3:00 AM UTC
Listed close: Oct 28, 2026, 11:00 PM UTC
Reported volume: 0 contracts
Outcome Yes: 6.5%; 24h change unavailable
Outcome No: 93.5%; 24h change unavailable
Saved rules: If the end-of-day S&P 500 index value on October 21, 2026 is between 7550-7574.9999, then the market resolves to Yes. Secondary rules: The market will close on October 21, 2026. The market will expire at the sooner of the first release of the data, or one week after October 21, 2026.

Pursuant to the Kalshi Rulebook, the Exchange has modified the Source Agency and Underlying for indices markets. See the rules for more information.

Contract: Will the S&P 500 be between 7525 and 7549.9999 on Oct 21, 2026 at 4pm EDT?
Provider: kalshi; ID: kalshi-KXINX-26OCT21H1600-B7537; status: active
Source: https://kalshi.com/markets/kxinx-26oct21h1600
Observed: Oct 21, 2026, 3:00 AM UTC
Listed close: Oct 28, 2026, 11:00 PM UTC
Reported volume: 0 contracts
Outcome Yes: 7.5%; 24h change unavailable
Outcome No: 92.5%; 24h change unavailable
Saved rules: If the end-of-day S&P 500 index value on October 21, 2026 is between 7525-7549.9999, then the market resolves to Yes. Secondary rules: The market will close on October 21, 2026. The market will expire at the sooner of the first release of the data, or one week after October 21, 2026.

Pursuant to the Kalshi Rulebook, the Exchange has modified the Source Agency and Underlying for indices markets. See the rules for more information.

Contract: Will the S&P 500 be between 7500 and 7524.9999 on Oct 21, 2026 at 4pm EDT?
Provider: kalshi; ID: kalshi-KXINX-26OCT21H1600-B7512; status: active
Source: https://kalshi.com/markets/kxinx-26oct21h1600
Observed: Oct 21, 2026, 3:00 AM UTC
Listed close: Oct 28, 2026, 11:00 PM UTC
Reported volume: 0 contracts
Outcome Yes: 4.0%; 24h change unavailable
Outcome No: 96.0%; 24h change unavailable
Saved rules: If the end-of-day S&P 500 index value on October 21, 2026 is between 7500-7524.9999, then the market resolves to Yes. Secondary rules: The market will close on October 21, 2026. The market will expire at the sooner of the first release of the data, or one week after October 21, 2026.

Pursuant to the Kalshi Rulebook, the Exchange has modified the Source Agency and Underlying for indices markets. See the rules for more information.

Contract: Will the S&P 500 be between 7475 and 7499.9999 on Oct 21, 2026 at 4pm EDT?
Provider: kalshi; ID: kalshi-KXINX-26OCT21H1600-B7487; status: active
Source: https://kalshi.com/markets/kxinx-26oct21h1600
Observed: Oct 21, 2026, 3:00 AM UTC
Listed close: Oct 28, 2026, 11:00 PM UTC
Reported volume: 0 contracts
Outcome Yes: 4.0%; 24h change unavailable
Outcome No: 96.0%; 24h change unavailable
Saved rules: If the end-of-day S&P 500 index value on October 21, 2026 is between 7475-7499.9999, then the market resolves to Yes. Secondary rules: The market will close on October 21, 2026. The market will expire at the sooner of the first release of the data, or one week after October 21, 2026.

Pursuant to the Kalshi Rulebook, the Exchange has modified the Source Agency and Underlying for indices markets. See the rules for more information.

Contract: Will the S&P 500 be between 7450 and 7474.9999 on Oct 21, 2026 at 4pm EDT?
Provider: kalshi; ID: kalshi-KXINX-26OCT21H1600-B7462; status: active
Source: https://kalshi.com/markets/kxinx-26oct21h1600
Observed: Oct 21, 2026, 3:00 AM UTC
Listed close: Oct 28, 2026, 11:00 PM UTC
Reported volume: 0 contracts
Outcome Yes: 1.0%; 24h change unavailable
Outcome No: 99.0%; 24h change unavailable
Saved rules: If the end-of-day S&P 500 index value on October 21, 2026 is between 7450-7474.9999, then the market resolves to Yes. Secondary rules: The market will close on October 21, 2026. The market will expire at the sooner of the first release of the data, or one week after October 21, 2026.

Pursuant to the Kalshi Rulebook, the Exchange has modified the Source Agency and Underlying for indices markets. See the rules for more information.

Contract: Will the S&P 500 be between 7425 and 7449.9999 on Oct 21, 2026 at 4pm EDT?
Provider: kalshi; ID: kalshi-KXINX-26OCT21H1600-B7437; status: active
Source: https://kalshi.com/markets/kxinx-26oct21h1600
Observed: Oct 21, 2026, 3:00 AM UTC
Listed close: Oct 28, 2026, 11:00 PM UTC
Reported volume: 0 contracts
Outcome Yes: 1.0%; 24h change unavailable
Outcome No: 99.0%; 24h change unavailable
Saved rules: If the end-of-day S&P 500 index value on October 21, 2026 is between 7425-7449.9999, then the market resolves to Yes. Secondary rules: The market will close on October 21, 2026. The market will expire at the sooner of the first release of the data, or one week after October 21, 2026.

Pursuant to the Kalshi Rulebook, the Exchange has modified the Source Agency and Underlying for indices markets. See the rules for more information.

Contract: Will the S&P 500 be between 7400 and 7424.9999 on Oct 21, 2026 at 4pm EDT?
Provider: kalshi; ID: kalshi-KXINX-26OCT21H1600-B7412; status: active
Source: https://kalshi.com/markets/kxinx-26oct21h1600
Observed: Oct 21, 2026, 3:00 AM UTC
Listed close: Oct 28, 2026, 11:00 PM UTC
Reported volume: 0 contracts
Outcome Yes: 0.5%; 24h change unavailable
Outcome No: 99.5%; 24h change unavailable
Saved rules: If the end-of-day S&P 500 index value on October 21, 2026 is between 7400-7424.9999, then the market resolves to Yes. Secondary rules: The market will close on October 21, 2026. The market will expire at the sooner of the first release of the data, or one week after October 21, 2026.

Pursuant to the Kalshi Rulebook, the Exchange has modified the Source Agency and Underlying for indices markets. See the rules for more information.

Contract: Will the S&P 500 be between 7375 and 7399.9999 on Oct 21, 2026 at 4pm EDT?
Provider: kalshi; ID: kalshi-KXINX-26OCT21H1600-B7387; status: active
Source: https://kalshi.com/markets/kxinx-26oct21h1600
Observed: Oct 21, 2026, 3:00 AM UTC
Listed close: Oct 28, 2026, 11:00 PM UTC
Reported volume: 0 contracts
Outcome Yes: 0.5%; 24h change unavailable
Outcome No: 99.5%; 24h change unavailable
Saved rules: If the end-of-day S&P 500 index value on October 21, 2026 is between 7375-7399.9999, then the market resolves to Yes. Secondary rules: The market will close on October 21, 2026. The market will expire at the sooner of the first release of the data, or one week after October 21, 2026.

Pursuant to the Kalshi Rulebook, the Exchange has modified the Source Agency and Underlying for indices markets. See the rules for more information.

Contract: Will the S&P 500 be between 7350 and 7374.9999 on Oct 21, 2026 at 4pm EDT?
Provider: kalshi; ID: kalshi-KXINX-26OCT21H1600-B7362; status: active
Source: https://kalshi.com/markets/kxinx-26oct21h1600
Observed: Oct 21, 2026, 3:00 AM UTC
Listed close: Oct 28, 2026, 11:00 PM UTC
Reported volume: 0 contracts
Outcome Yes: 0.5%; 24h change unavailable
Outcome No: 99.5%; 24h change unavailable
Saved rules: If the end-of-day S&P 500 index value on October 21, 2026 is between 7350-7374.9999, then the market resolves to Yes. Secondary rules: The market will close on October 21, 2026. The market will expire at the sooner of the first release of the data, or one week after October 21, 2026.

Pursuant to the Kalshi Rulebook, the Exchange has modified the Source Agency and Underlying for indices markets. See the rules for more information.

Contract: Will the S&P 500 be between 7325 and 7349.9999 on Oct 21, 2026 at 4pm EDT?
Provider: kalshi; ID: kalshi-KXINX-26OCT21H1600-B7337; status: active
Source: https://kalshi.com/markets/kxinx-26oct21h1600
Observed: Oct 21, 2026, 3:00 AM UTC
Listed close: Oct 28, 2026, 11:00 PM UTC
Reported volume: 0 contracts
Outcome Yes: 0.5%; 24h change unavailable
Outcome No: 99.5%; 24h change unavailable
Saved rules: If the end-of-day S&P 500 index value on October 21, 2026 is between 7325-7349.9999, then the market resolves to Yes. Secondary rules: The market will close on October 21, 2026. The market will expire at the sooner of the first release of the data, or one week after October 21, 2026.

Pursuant to the Kalshi Rulebook, the Exchange has modified the Source Agency and Underlying for indices markets. See the rules for more information.

Saved cross-platform review:
No exact pair with two valid binary Yes prices is available for comparison.

Explain the named outcomes, material rule/deadline differences, and evidence limits. Keep Polymarket dollar volume separate from Kalshi contract counts. Do not average unrelated contracts, infer missing prices or changes, or describe unreviewed/related pairs as equivalent. Distinguish listed prices from executable bid/ask prices, fees and available size. Do not invent current news, confidence scores or settlement guarantees. Cite the provided source links and identify what further evidence would be needed.

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AI-written background. References identify the evidence used; Wikipedia links under Learn More are additional reading. Prices and provider rules are dated snapshots. This is not financial advice.

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