SimpleFunctions

Aliens · Will Any Halftime Performer perform

Aliens is priced at 49¢ midpoint on Kalshi. Current book: 8¢ bid, 90¢ ask, 82¢ spread. This outcome ranks #2 of 16 inside Will Any Halftime Performer perform.

Price history

49¢ current

+47¢
0¢25¢50¢
Jul 10, 2026Jul 13, 2026

Contract brief

If Any Halftime Performer performs 'Aliens' at the 2026 FIFA World Cup Final Halftime Show scheduled for July 19, 2026 at New York New Jersey Stadium before Jul 20, 2026, then the market resolves to Yes.

Outcome

Aliens

Rank

#2 of 16

Leader

Dai Dai 86¢

Range

8¢-86¢

Family volume

$0

Identifier

KXWCFINALSONGS-26JUL20-ALI

Jul 13, 2026, 3:08 AM UTC · 29m ago

Implied probability

49¢
Bid/ask midpoint
Jul 13, 2026, 3:08 AM UTC · 29m ago

Bid

Ask

90¢

Spread

82¢

Reported volume

$0

Family rank

#2 of 16

16 outcomes · Will Any Halftime Performer perform

Closes

Jul 20, 2026

Family volume

$0

Orderbook snapshot

8 / 90¢

Kalshi
82¢ spread
BidSize
8¢10
7¢5
2¢200
AskSize
90¢10
91¢100
96¢35
97¢50

Contract terms

What resolves this market.

YES condition

If Any Halftime Performer performs 'Aliens' at the 2026 FIFA World Cup Final Halftime Show scheduled for July 19, 2026 at New York New Jersey Stadium before Jul 20, 2026, then the market resolves to Yes.

Venue

Kalshi

Closes

Jul 20, 2026

Identifier

KXWCFINALSONGS-26JUL20-ALI

SF Signal
SF Index
28163.58
Regime
neutral

Indicators

Yield, cliff risk, volatility, and regime.

IY (Yes)

56327.2%

IY (No)

425.9%

Adj IY

28164%

CRI

12

Overround

3.9%

Regime

neutral

Score

0.5

Full indicator table

56327.2%
425.9%
Adj IY
28164%
12
Overround
3.9%

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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.