SimpleFunctions

S&P 500 Index above $8,000 before Dec 1, 2026

Before Dec 1, 2026 is priced at 62¢ on Kalshi. Current book: 44¢ bid, 54¢ ask, 10¢ spread. This outcome ranks #4 of 6 inside Will the S&P 500 Index be above $8,000 before.

Price history

62¢ current

60¢65¢
Sep 24, 2026Sep 24, 2026

Contract brief

If the value of the S&P 500 Index is above $8,000 at any point after Issuance and before Dec 1, 2026, then the market resolves to Yes.

Outcome

Before Dec 1, 2026

Rank

#4 of 6

Leader

Before Mar 1, 2027 75¢

Range

7¢-75¢

Family volume

$2K

Identifier

KXSP500WHEN-8000-26DEC01

Sep 23, 2026, 11:08 PM UTC · 1h ago

Implied probability

62¢
Latest venue quote
Sep 23, 2026, 11:08 PM UTC · 1h ago

Bid

44¢

Ask

54¢

Spread

10¢

24h volume

$157

Family rank

#4 of 6

6 outcomes · Will the S&P 500 Index be above $8,000 before

Closes

Dec 1, 2026

Family volume

$2K

Orderbook snapshot

44 / 54¢

Kalshi
10¢ spread
BidSize
44¢200
42¢3.0K
37¢1
30¢161
2¢19
AskSize
54¢200
65¢49
66¢160
68¢150
74¢250

Contract terms

What resolves this market.

YES condition

If the value of the S&P 500 Index is above $8,000 at any point after Issuance and before Dec 1, 2026, then the market resolves to Yes.

Venue

Kalshi

Closes

Dec 1, 2026

Identifier

KXSP500WHEN-8000-26DEC01

SF Signal
SF Index
301.56
Regime
neutral

Event family

Will the S&P 500 Index be above $8,000 before.

The same race as a probability stack: rank, volume, and where this contract sits against the other outcomes.

Total volume

$2K

Outcomes

6

Highest price

Before Mar 1, 2027 75¢

Current share

8%

Indicators

Yield, cliff risk, volatility, and regime.

IY (Yes)

603.1%

IY (No)

474.3%

Adj IY

302%

CRI

1

Overround

2.0%

Regime

neutral

Score

0.5

Full indicator table

603.1%
474.3%
Adj IY
302%
1
Overround
2.0%

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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.