WMID

Midterm Control — the basket

SlateMonthly

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 print31 held · close 2026-11-05
1007.37+0.74%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
1007.37
Since inception
+0.74%
Cost to cross
—
Holdings marked
14.3% of 31
1 day
+0.46%
7 day
+4.74%
Markets held
31
Settled
5
Rebalanced out
0
Hit rate
100.0% (5 of 5)
Cash
64.3%
Inception
2026-08-01
Weighting
Equal notional
Marks
Two-sided mid
Days tracked
70

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 · 31 markets

held since 2026-08-01 · the reading above is computed over today's roster, which differs
MarketNowReturn
  • Will the Republican Party control the Senate after the 2026 Midterm elections?polymarket · YES · entry 56c3 sessions stale1.0¢ spread · 33.7k/169.5k within 5¢28c−48.6%↗
  • Democratic Party — Which party will win the U.S. House?gemini · YES · entry 85c13 sessions stale1.0¢ spread · 3.7k/2.6k within 5¢92c+8.3%↗
  • Will Mary Peltola win the Alaska Senate race in 2026?polymarket · YES · entry 61c1.0¢ spread · 45.2k/37.1k within 5¢95c+57.0%↗
  • Republicans win Trifecta with Senate Supermajority in midterms?polymarket · YES · entry 5c3 sessions stale0.1¢ spread · 27.1k/4.9k within 5¢2c−66.7%↗
  • Will Tom Begich win the 2026 Alaska governor election?polymarket · YES · entry 28c13 sessions stale1c−96.1%↗
  • Before 2027? — Will crypto market structure legislation become law?gemini · YES · entry 33c15 sessions stale3.0¢ spread · 1.6k/250 within 5¢6c−83.1%↗
  • Will the Democratic Party win the CA-15 House seat?polymarket · YES · entry 95c5 sessions stale1.0¢ spread · 5.5k/589 within 5¢98c+3.9%↗
  • Will the Republican Party win the FL-01 House seat?polymarket · YES · entry 96c5 sessions stale1.0¢ spread · 605/521 within 5¢97c+1.5%↗
  • Before 2027 — Will the US buy at least part of Greenland?gemini · YES · entry 4c17 sessions stale4c0.0%↗
  • Xavier Becerra — California Governor winner?gemini · YES · entry 96c15 sessions stale1.0¢ spread · 537/9.5k within 5¢96c+0.5%↗
  • Will the Republican Party win the MS-01 House seat?polymarket · YES · entry 94c5 sessions stale97c+3.6%↗
  • SAVE Act becomes law? — Will the SAVE Act become law?gemini · YES · entry 7c42 sessions stale7c0.0%↗
  • New Virginia congressional map used in the midterms?polymarket · YES · entry 4c3 sessions stale2c−59.2%↗
  • Will the Democratic Party win the WI-02 House seat?polymarket · YES · entry 94c42 sessions stale97c+3.1%↗
  • Republican Party — Which party will win the U.S. Senate?gemini · YES · entry 56c13 sessions stale35c−38.1%↗
  • Will the Democratic Party win the CA-16 House seat?polymarket · YES · entry 94c42 sessions stale98c+4.7%↗
  • Will the Republican Party win the WV-02 House seat?polymarket · YES · entry 94c5 sessions stale97c+2.6%↗
  • Will the Democratic Party win the CA-28 House seat?polymarket · YES · entry 94c42 sessions stale98c+4.5%↗
  • Will the Republican Party win the WV-01 House seat?polymarket · YES · entry 94c6 sessions stale97c+4.0%↗
  • Will the Democratic Party win the MI-11 House seat?polymarket · YES · entry 94c3 sessions stale98c+4.5%↗
  • Will the Republican Party win the OK-03 House seat?polymarket · YES · entry 94c5 sessions stale97c+3.5%↗
  • Will the Democratic Party win the HI-02 House seat?polymarket · YES · entry 96c3 sessions stale98c+2.8%↗
  • Will the Republican Party win the VA-09 House seat?polymarket · YES · entry 93c3 sessions stale97c+4.2%↗
  • Will the Democratic Party win the IL-04 House seat?polymarket · YES · entry 94c3 sessions stale98c+4.7%↗
  • Will ACA premium tax credits not be extended and will the Democratic Party win the House in 2026?polymarket · YES · entry 81c40 sessions stale89c+9.9%↗
  • Marine Le Pen — French Presidential Election Winner 2027?gemini · YES · entry 33c13 sessions stale46c+40.0%↗
  • Will the Republican Party win the VA-06 House seat?polymarket · YES · entry 91c5 sessions stale93c+2.8%↗
  • Will the Democratic Party win the CA-50 House seat?polymarket · YES · entry 94c3 sessions stale97c+3.9%↗
  • Will the Democratic Party win the LA-02 House seat?polymarket · YES · entry 95c7 sessions stale97c+2.7%↗
  • Christopher Luxon — Which world leaders will leave office in 2026?gemini · YES · entry 48c66 sessions stale44c−7.4%↗
  • Will the Republican Party win the TX-24 House seat?polymarket · YES · entry 84c5 sessions stale95c+13.2%↗

Settled · 5

graded outcomes — the basket's realized record
Will the Democratic Party control the House after the 2026 Midterm elections?yes+17.0%
2026 Balance of Power: D Senate, D Houseyes+124.7%
Will the Republicans win the Nebraska Senate race in 2026?yes+40.8%
Will there be another US government shutdown by January 31 and will the Democratic Party win the House in 2026?yes+16.6%
Blue wave in 2026?yes+34.2%

All markets resolve YES · 5 of 31

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
90.48%
Π of the individual probabilities
True range · any correlation
90.1–97.9%
Fréchet–Hoeffding bounds · 7.7pp wide
YESWill the Democratic Party win the CA-15 House seat?98%
YESWill the Democratic Party win the HI-02 House seat?98%
YESWill the Democratic Party win the MI-11 House seat?98%
YESWill the Democratic Party win the IL-04 House seat?98%
YESWill the Democratic Party win the CA-16 House seat?98%

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.