Inverse Increase — Economics, inside two months — the basket
SlateExperimentalMonthlyThe 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.
hypothetical · mid marks · before fees, spread and slippage
Basket performance
hypothetical · mid marks · before fees, spread and slippage- Basket total return
- 900.71
- Since inception
- −9.93%
- Cost to cross
- —
- Holdings marked
- 42.9% of 14
- 1 day
- −0.43%
- 7 day
- −1.13%
- Markets held
- 14
- Settled
- 0
- Rebalanced out
- 0
- Hit rate
- —
- Cash
- 55.5%
- 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 · 14 markets
held since 2026-08-18 · the reading above is computed over today's roster, which differs- Will the Fed increase interest rates by 25 bps after the September 2026 meeting?polymarket · NO · entry 72c9 sessions stalepolymarketNO72c56c−21.0%15.0%Polymarket ↗
- Will the Bank of Japan announce a 25 bps increase at the September 2026 meeting?polymarket · NO · entry 23c7 sessions stalepolymarketNO23c12c−46.7%15.0%Polymarket ↗
- Bank of England increases interest rates by 25 bps after September 2026 meeting?polymarket · NO · entry 92c7 sessions stalepolymarketNO92c96c+5.1%15.0%Polymarket ↗
- Will the ECB announce a 25 bps increase at the September 2026 meeting?polymarket · NO · entry 12c12 sessions stalepolymarketNO12c6c−52.2%15.0%Polymarket ↗
- Will monthly inflation increase by 0.4% in August?polymarket · NO · entry 60c12 sessions stalepolymarketNO60c57c−3.4%6.1%Polymarket ↗
- Will the Central Bank of Colombia increase the monetary policy interest rate by 50+ bps at the September meeting?polymarket · NO · entry 93cpolymarketNO93c84c−9.7%5.2%Polymarket ↗
- Will monthly inflation increase by 0.2% in August?polymarket · NO · entry 91c12 sessions stalepolymarketNO91c95c+4.4%5.1%Polymarket ↗
- Will monthly inflation increase by 0.5% or more in August?polymarket · NO · entry 86c12 sessions stalepolymarketNO86c77c−11.0%4.7%Polymarket ↗
- Will China’s CPI increase by between 0.7% and 0.8% over the 12 month period ending in August 2026?polymarket · NO · entry 58cpolymarketNO58c55c−5.2%4.5%Polymarket ↗
- Will China’s CPI increase by between 0.3% and 0.4% over the 12 month period ending in August 2026?polymarket · NO · entry 85cpolymarketNO85c92c+8.2%4.2%Polymarket ↗
- Reserve Bank of Australia increases interest rates by 25 bps at the September 2026 meeting?polymarket · NO · entry 95cpolymarketNO95c39c−59.3%3.5%Polymarket ↗
- Will the Central Bank of Colombia increase the monetary policy interest rate by 25 bps at the September meeting?polymarket · NO · entry 92cpolymarketNO92c90c−1.9%3.3%Polymarket ↗
- Will monthly inflation increase by 0.3% in August?polymarket · NO · entry 69c12 sessions stalepolymarketNO69c74c+8.0%2.1%Polymarket ↗
- Will China’s CPI increase by between 0.5% and 0.6% over the 12 month period ending in August 2026?polymarket · NO · entry 67cpolymarketNO67c78c+16.5%1.3%Polymarket ↗
All markets resolve YES · 5 of 14
a computed statistic about this watchlist — not an instrument, not offered anywhereThe 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.
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.