WTAYL

Taylor Swift — Culture, inside six months — the basket

SlateExperimentalStanding

The real markets behind this index, across every venue that lists them, tracked as one spread. Instead of reading a single contract, you read the theme — which is what a multi-week position is actually exposed to. Each holding links straight to its venue; W.E.T. never handles orders, you trade at the exchange.

Basket level · official print27 held · close 2026-09-08
872.46−12.75%since inception · base 1000

hypothetical · mid marks · before fees, spread and slippage

Basket performance

hypothetical · mid marks · before fees, spread and slippage
Basket total return
872.46
Since inception
−12.75%
Cost to cross
Holdings marked
25.9% of 27
1 day
−4.33%
7 day
−1.28%
Markets held
27
Settled
0
Rebalanced out
0
Hit rate
Cash
57.3%
Inception
2026-08-18
Weighting
Equal notional
Marks
Two-sided mid
Days tracked
18

Equal notional from each holding’s inception mark, re-marked at the two-sided mid. Percentages only, size-blind — never a cash figure and never a performance claim.

Cost to cross is the weighted half-spread at the touch on the newest mark tape: what entering at the quote rather than the midpoint would have cost. It is the price of the FIRST unit and says nothing about the tenth — the resting size beside each holding is published so a reader can judge whether their own size fits. It is not deducted from any return above.

A published measurement of what these markets did together. Not an account, not directly investable; W.E.T. never handles orders.

Holdings · 27 markets

held since 2026-08-18 · the reading above is computed over today's roster, which differs
MarketNowReturn
  • Will Taylor Swift be the #1 searched person on Google this year?polymarket · YES · entry 4c2c−54.5%
  • Will Taylor Swift be the #1 searched person on Google in the US this year?polymarket · YES · entry 7c3c−62.7%
  • Will Taylor Swift be the top artist for 2026?polymarket · YES · entry 5c2c−56.7%
  • Will The Life of a Showgirl (Taylor Swift) win Album of the Year at the 69th Annual GRAMMY Awards?polymarket · YES · entry 8c4c−55.0%
  • Will Taylor Swift have 19000000000 Streams on Luminate during January 01 - December 31, 2026?kalshi · YES · entry 98c10 sessions stale97c−1.0%
  • Will Taylor Swift have 20000000000 Streams on Luminate during January 01 - December 31, 2026?kalshi · YES · entry 98c2 sessions stale94c−3.6%
  • Will Taylor Swift have 20500000000 Streams on Luminate during January 01 - December 31, 2026?kalshi · YES · entry 98c2 sessions stale94c−3.6%
  • Will Taylor Swift have 21000000000 Streams on Luminate during January 01 - December 31, 2026?kalshi · YES · entry 98c2 sessions stale94c−3.6%
  • Will Taylor Swift have 22000000000 Streams on Luminate during January 01 - December 31, 2026?kalshi · YES · entry 98c2 sessions stale94c−4.1%
  • Will Taylor Swift have 22500000000 Streams on Luminate during January 01 - December 31, 2026?kalshi · YES · entry 98c2 sessions stale94c−4.1%
  • Will Taylor Swift have 23000000000 Streams on Luminate during January 01 - December 31, 2026?kalshi · YES · entry 98c2 sessions stale94c−4.1%
  • Will Taylor Swift have 23500000000 Streams on Luminate during January 01 - December 31, 2026?kalshi · YES · entry 98c2 sessions stale94c−4.1%
  • Will Taylor Swift be the second most streamed artist for 2026?polymarket · YES · entry 17c18c+6.1%
  • Will Taylor Swift have 26500000000 Streams on Luminate during January 01 - December 31, 2026?kalshi · YES · entry 87c2 sessions stale87c0.0%
  • Will Taylor Swift be the top artist in the US for 2026?polymarket · YES · entry 6c7c+8.1%
  • Taylor Swift pregnant before 2027?polymarket · YES · entry 11c14c+38.1%
  • Will Taylor Swift have 26000000000 Streams on Luminate during January 01 - December 31, 2026?kalshi · YES · entry 91c2 sessions stale89c−1.7%
  • Will Taylor Swift have 25000000000 Streams on Luminate during January 01 - December 31, 2026?kalshi · YES · entry 96c2 sessions stale92c−3.7%
  • Will Taylor Swift spend 7 weeks at #1 on the Billboard Hot 100 in 2026?kalshi · YES · entry 37c37c−1.4%
  • Will Taylor Swift have 25500000000 Streams on Luminate during January 01 - December 31, 2026?kalshi · YES · entry 94c2 sessions stale92c−2.7%
  • Will Taylor Swift have 24500000000 Streams on Luminate during January 01 - December 31, 2026?kalshi · YES · entry 96c2 sessions stale93c−2.6%
  • Will Taylor Swift spend 10 weeks at #1 on the Billboard Hot 100 in 2026?kalshi · YES · entry 30c26c−11.9%
  • Will Taylor Swift spend 11 weeks at #1 on the Billboard Hot 100 in 2026?kalshi · YES · entry 26c25c−3.8%
  • Will Taylor Swift spend 12 weeks at #1 on the Billboard Hot 100 in 2026?kalshi · YES · entry 23c20c−13.0%
  • Will Taylor Swift spend 6 weeks at #1 on the Billboard Hot 100 in 2026?kalshi · YES · entry 50c49c−3.0%
  • Will Taylor Swift spend 8 weeks at #1 on the Billboard Hot 100 in 2026?kalshi · YES · entry 36c29c−18.3%
  • Will Taylor Swift have 24000000000 Streams on Luminate during January 01 - December 31, 2026?kalshi · YES · entry 97c2 sessions stale94c−3.1%

All markets resolve YES · 5 of 27

a computed statistic about this watchlist — not an instrument, not offered anywhere

The chance that every one of these markets resolves YES. It is the mathematical opposite of the basket above: the basket is a weighted mean, where one loss doesn't zero it; this is a product, where every market must land. Same markets, opposite risk shape — which is the whole reason to show them together.

The markets shown are this index's most likely holdings, added while the joint probability stays above 1%. Ranking by portfolio weight instead would be arbitrary here, since equal-notional weights are near-identical by design.

If independent
74.94%
Π of the individual probabilities
True range · any correlation
72.093.5%
Fréchet–Hoeffding bounds · 21.5pp wide
YESWill Taylor Swift have 19000000000 Streams on Luminate during January 01 - December 31, 2026?97%
YESWill Taylor Swift have 20000000000 Streams on Luminate during January 01 - December 31, 2026?94%
YESWill Taylor Swift have 20500000000 Streams on Luminate during January 01 - December 31, 2026?94%
YESWill Taylor Swift have 21000000000 Streams on Luminate during January 01 - December 31, 2026?94%
YESWill Taylor Swift have 22000000000 Streams on Luminate during January 01 - December 31, 2026?94%

Multiplying probabilities assumes the markets are independent — which is precisely wrong for markets grouped by a shared theme, since correlation is why they sit in one index. The range is therefore the honest answer: the true joint probability sits inside it under any correlation structure, with no covariance estimate required.

This is a statistic, not a product. W.E.T. does not offer, quote, accept or route a combined position in these markets, and no venue is quoting one here — the figures are computed by W.E.T. from individual market prices. Each market above trades on its own venue, individually, at the links in the holdings table. Data, not advice.

How to read this

The basket holds equal notional in each market from its inception mark, so every holding counts equally in return terms rather than the biggest contract dominating. The level is that combined position, re-marked daily at the two-sided mid and rebased to 1000. Settled markets convert to cash at their payoff and wait for the next monthly review.

This is a published benchmark, not an account and not a product: the index is not directly investable. Marks are mid quotes before fees, spread and slippage, and no capacity limit is assumed — a real position would differ. W.E.T. is not an exchange and never handles orders. Data, not advice. Full methodology.