SimpleFunctions

S&P 500 above 8000 on Dec 31, 2026 at 4pm EST

8,000 or above is priced at 42¢ on Kalshi. Current book: 19¢ bid, 41¢ ask, 22¢ spread. This outcome ranks #12 of 16 inside Will the S&P 500 be above.

Price history

42¢ current

+37¢
0¢25¢50¢75¢
May 29, 2026Jun 25, 2026

Contract brief

If the S&P 500 index value on Dec 31, 2026 at 4pm EST is above 8000, then the market resolves to Yes.

Outcome

8,000 or above

Rank

#12 of 16

Leader

6,900 or above 77¢

Range

7¢-77¢

Family volume

$5

Identifier

KXINXDIRY-26DEC31H1600-T8000

Jun 25, 2026, 5:08 PM UTC · 9m ago

Implied probability

42¢
Latest venue quote
Jun 25, 2026, 5:08 PM UTC · 9m ago

Bid

19¢

Ask

41¢

Spread

22¢

24h volume

$2

Family rank

#12 of 16

16 outcomes · Will the S&P 500 be above

Closes

Dec 31, 2026

Family volume

$5

Orderbook snapshot

19 / 41¢

Kalshi
22¢ spread
BidSize
19¢5
18¢5
17¢3
16¢91
15¢2.0K
AskSize
41¢2
43¢8
44¢23
45¢2.0K
51¢101

Contract terms

What resolves this market.

YES condition

If the S&P 500 index value on Dec 31, 2026 at 4pm EST is above 8000, then the market resolves to Yes.

Venue

Kalshi

Closes

Dec 31, 2026

Identifier

KXINXDIRY-26DEC31H1600-T8000

SF Signal
SF Index
822.61
Regime
neutral

Indicators

Yield, cliff risk, volatility, and regime.

IY (Yes)

822.6%

IY (No)

45.3%

Adj IY

823%

CRI

4

RV

2673%

VR

6.24

Regime

neutral

Score

0.5

Full indicator table

822.6%
45.3%
Adj IY
823%
4
RV
2673%
VR
6.24
IAR
0.3/h
Overround
5.4%

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How we compute these odds

SimpleFunctions aggregates live prediction-market contracts from Kalshi and Polymarket. Each slug groups contracts that resolve on the same underlying event, identified by venue event_id.

For binary slugs, the headline probability is the liquidity-weighted mid-price across all bound contracts. For multi-outcome slugs (e.g. elections with 3+ candidates), the headline is the leader’s price; we never arithmetically average disjoint outcomes — that would produce a number with no real-world meaning.

Snapshots refresh every 5 minutes during market hours; daily aggregates are computed at 04:00 UTC. The 30-day sparkline is drawn from per-ticker daily means stored in market_indicator_daily; 24h delta and movement events are derived from the same source.