Will the S&P 500 be between 8400 and 8599.99 on Dec 31, 2027 at 4pm EST?

8,400 to 8,599.99activebinarybetween

Public page Open on kalshi.com

Yes bid / ask

3¢ / 8¢

spread 5¢

Last trade

0¢

–

No bid / ask

92¢ / 97¢

24h volume

0

0 lifetime

Open interest

0

top of book 50 × 470

Closes

in 16mo

Dec 31, 2027 · 9:00 PM UTC

YES price

Close per candle with bid/ask band; volume below. Times in UTC.

24h · 1m 7d · 1h 30d · 1h 90d · 1d

Not enough history to chart.

Order book

Top of book, both sides expressed as YES prices.

Yes ask (no bid)SizeYes

ask2,00016¢
ask4708¢

spread5¢mid 5¢

bid503¢

Resolution rules

Verbatim from the venue. The analyst must quote these, never paraphrase.

If the S&P 500 index value on Dec 31, 2027 at 4pm EST is between 8400-8599.99, then the market resolves to Yes.

The market will close on December 31, 2027. The market will expire at the sooner of the first release of the data, or one week after December 31, 2027. Pursuant to the Kalshi Rulebook, the Exchange has modified the Source Agency and Underlying for indices markets. See the rules for more information.

opens: Aug 17 · 4:00 PM UTC
closes: Dec 31, 2027 · 9:00 PM UTC · may close early
expires: Dec 31, 2027 · 9:00 PM UTC
floor: 8400
cap: 8599.99

Recent trades

Most recent first. Price is the YES side.

No trades yet.

Raw payload

Exactly what the API returned for this market.

Show JSON

market44

can_close_earlytrue

cap_strike8599.99

close_time2027-12-31T21:00:00Z

created_time2026-08-17T14:31:24.178023Z

bid

70

2¢

Yes bid (no ask)SizeYes

custom_strike1

IndexS&P 500

event_tickerKXINXY-27DEC31H1600

exchange_index0

expected_expiration_time2027-12-31T21:00:00Z

expiration_time2028-01-08T00:00:00Z

expiration_value

floor_strike8400

last_price_dollars0.0000

latest_expiration_time2028-01-08T00:00:00Z

liquidity_dollars0.0000

market_typebinary

no_ask_dollars0.9700

no_bid_dollars0.9200

no_sub_title8,400 to 8,599.99

notional_value_dollars1.0000

occurrence_datetime2027-12-31T21:00:00Z

open_interest_fp0.00

open_time2026-08-17T16:00:00Z

previous_price_dollars0.0000

previous_yes_ask_dollars0.0800

previous_yes_bid_dollars0.0300

price_level_structurelinear_cent

price_ranges1

[0]3

end1.0000

start0.0000

step0.0100

result

rules_primaryIf the S&P 500 index value on Dec 31, 2027 at 4pm EST is between 8400-8599.99, then the market resolves to Yes.

rules_secondaryThe market will close on December 31, 2027. The market will expire at the sooner of the first release of the data, or one week after December 31, 2027. Pursuant to the Kalshi Rulebook, the Exchange has modified the Source Agency and Underlying for indices markets. See the rules for more information.

settlement_timer_seconds60