What is the “Ackman vs. S&P - January” market asking?

It asks whether the following will happen: Ackman vs. S&P - January Traders buy Yes shares if they think it will and No shares if they think it will not.

What do the Yes and No prices mean?

At the last observation Yes traded at 100.0¢ and No at 0.0¢. A Yes share pays $1 if the market resolves Yes, so its price is the market's implied probability: 100.0% for Yes and 0.0% for No. The two prices add up to about one dollar.

How did this market resolve?

It resolved Ackman on 31 Jan 2026. Trading has stopped; the record of prices, holders and trades stays on this page.

How does this market resolve?

If the Bill Ackman Index performs better than the S&P 500 Index in January 2026, this market will resolve to “Ackman”. If the S&P 500 Index performs better than the Bill Ackman Index in January 2026, this market will resolve to “S&P”. The performance of each index will be the 1-month trailing percentage return of the index for the final trading day of the specified month. The resolution source for the Bill Ackman Index ("Ackman") is: https://web.dubapp.com/portfolios/index/559452008356167680 Information from the "Performance" table for the Bill Ackman Index, specifically the 1-month trailing…

What is the difference between volume, liquidity and open interest?

Volume is the dollar value of shares traded in a period, liquidity is the dollar value resting in the order book ready to be traded against, and open interest is the value of all shares currently held. Volume measures activity, liquidity measures how easily you can trade, and open interest measures how much is at stake.

Who still holds shares in this market?

18 public wallets still held shares when Vultax last looked. Winners usually redeem their shares after settlement, so the remaining holders are mostly on the losing side.

Where does this data come from and how fresh is it?

Prices, the order book, holders and the trade tape come from Polymarket's public order book and data API. Vultax records each observation with its own timestamp (market facts last updated Feb 1, 8:23 AM UTC) and shows a value as unavailable rather than as zero when a source has not answered.

Can I trade this market on Vultax?

No. Vultax is a research and paper-trading terminal; it does not execute orders. The trade controls open the official market on Polymarket (https://polymarket.com/event/ackman-vs-sp-january) or the Vultax predictions monitor, where you can track the market and paper trade it.

Resolved Ackman: Ackman vs. S&P - January

Market referenceackman-vs-sp-januaryUpdated Feb 1, 2026 UTC

Resolved

Ackman · settled Jan 31, 2026 UTC

Ackman

100.0%

S&P

0.0%

Final Ackman 100¢Final S&P 0¢

Lifetime volume

$19.9K

Resolved

Ackman

Settled

Jan 31, 2026 UTC

Source Evidence

Evidence coverage

Items

Fetched

Latest

Feb 1, 2026 UTC

Public Polymarket market/event context is available; Vultax source-pack coverage is tracked separately.

Depth

Observed

Feb 1, 2026 UTC

This closed market has no live orderbook depth; the public close quote is shown for context.

Trading stateMarket usability at the displayed observation.

Market state

Resolved

Order book

Captured book available

Final outcome

Ackman

The resolved venue state is treated as proof of resolution; holder and trade rows are settlement context.

Holder depthCapped public top-holder sample.

Rows loaded

Wallets

Top 10 share

92%

Yes / No shares

6.09 / 739.45

Rows reflect the positive holders returned for this market, not venue-wide open interest.

Recent tapeLatest public market trades.

Trades loaded

199

Wallets

111

Loaded notional

$12.64K

Ackman sell at 99.9%

History rangePolymarket CLOB price history · daily closes · latest observation Jan 31, 12:00 AM UTC

Points

Move

+50 pts

Range

50.0% - 100.0%

Jan 10, 12:00 AM UTC to Jan 31, 12:00 AM UTC

PricesPolymarket CLOB price history · daily closes · latest observation Jan 31, 12:00 AM UTC

Depth historyCheckSubscriber depth access is checked only when requested, keeping the public page fast.

Bucket	Close	Mid
Jan 31, 12:00 AM UTC	100.0%	100.0%
Jan 30, 12:00 AM UTC	94.0%	94.0%
Jan 29, 12:00 AM UTC	92.5%	92.5%

Questions

Questions about this market

What is the “Ackman vs. S&P - January” market asking?: It asks whether the following will happen: Ackman vs. S&P - January Traders buy Yes shares if they think it will and No shares if they think it will not.
What do the Yes and No prices mean?: At the last observation Yes traded at 100.0¢ and No at 0.0¢. A Yes share pays $1 if the market resolves Yes, so its price is the market's implied probability: 100.0% for Yes and 0.0% for No. The two prices add up to about one dollar.
How did this market resolve?: It resolved Ackman on 31 Jan 2026. Trading has stopped; the record of prices, holders and trades stays on this page.
How does this market resolve?: If the Bill Ackman Index performs better than the S&P 500 Index in January 2026, this market will resolve to “Ackman”. If the S&P 500 Index performs better than the Bill Ackman Index in January 2026, this market will resolve to “S&P”. The performance of each index will be the 1-month trailing percentage return of the index for the final trading day of the specified month. The resolution source for the Bill Ackman Index ("Ackman") is: https://web.dubapp.com/portfolios/index/559452008356167680 Information from the "Performance" table for the Bill Ackman Index, specifically the 1-month trailing…
What is the difference between volume, liquidity and open interest?: Volume is the dollar value of shares traded in a period, liquidity is the dollar value resting in the order book ready to be traded against, and open interest is the value of all shares currently held. Volume measures activity, liquidity measures how easily you can trade, and open interest measures how much is at stake.

Analytics

Bucket

Mid

Spread

Volume

Trades

Jan 31, 12:00 AM UTC

100.0%

Jan 30, 12:00 AM UTC

94.0%

Jan 29, 12:00 AM UTC

92.5%