Insights / The weekly briefing

What is the market seeing?

The decisions being repriced, the evidence behind them, and what could change next.

Latest briefing · 2 storiesAug 29 – Sep 5, 2026
By PredictionCompare · Reviewed Sep 6, 2026 · Historical prices through Sep 5, 2026

The Fed is a close call—even after heavy hike buying.

A 50% hike price, a 49% hold price, and inflation data before the decision. The interesting part is how little heavy buying has changed the balance.

Our read

The stronger signal is a market still divided over a hike versus a hold. Buyer-initiated activity was substantial, but the Polymarket YES price rose only three points. Watch how prices respond to inflation data before reading this as a new consensus.

Read the weekly briefing
The full decision

Hike, hold, or cut?

September Fed meeting · YES purchase prices

KalshiPolymarket
Hike 50+ bps
Kalshi2%
Polymarket0.7%
Hike 25 bps
Kalshi50%
Polymarket50%
Hold rates
Kalshi49%
Polymarket49%
Cut 25 bps
Kalshi1%
Polymarket0.4%
Cut 50+ bps
Kalshi1%
Polymarket0.2%

Separate contract prices, before fees. Each row uses its final three recorded quotes; these are not normalized probabilities and need not add to 100%.

When were these prices recorded?
  • Hike 50+ bps: Sep 5, 2026 · 18:20 UTC
  • Hike 25 bps: Sep 5, 2026 · 18:15 UTC
  • Hold rates: Sep 5, 2026 · 18:10 UTC
  • Cut 25 bps: Sep 5, 2026 · 18:10 UTC
  • Cut 50+ bps: Sep 5, 2026 · 18:25 UTC

Rigetti’s $100M proposal is being priced with more doubt.

The YES price fell about 15 points on both venues. The key distinction is between proposed government support and a qualifying equity agreement.

Our read This looks like a repricing of execution risk: the proposed support remains on record while purchase prices have retreated. The consequential question is whether it becomes a qualifying agreement within the deadline. The chart alone does not establish that negotiations have deteriorated.

Read the case and countercase →
Kalshi87% 72%−15 points
Polymarket95.6% 80.5%−15.1 points
Recorded Kalshi and Polymarket YES prices: Rigetti Computing, Inc. to receive a US government stake in 2026Kalshi moved from 87% to 72%; Polymarket from 95.6% to 80.5%. Both venues moved in the same direction. Lines break at missing observations or gaps longer than six hours. Vertical scale 0 to 100%.0%50%100%Kalshi 88% · Aug 30, 2026 · 1:45 UTCKalshi 87% · Aug 30, 2026 · 7:50 UTCKalshi 87% · Aug 30, 2026 · 10:40 UTCKalshi 88% · Aug 30, 2026 · 13:35 UTCKalshi 88% · Aug 30, 2026 · 16:35 UTCKalshi 88% · Aug 30, 2026 · 19:45 UTCKalshi 88% · Aug 31, 2026 · 1:30 UTCKalshi 82% · Aug 31, 2026 · 4:25 UTCKalshi 82% · Aug 31, 2026 · 4:25 UTCKalshi 82% · Aug 31, 2026 · 4:30 UTCKalshi 82% · Aug 31, 2026 · 4:35 UTCKalshi 88% · Aug 31, 2026 · 7:15 UTCKalshi 88% · Aug 31, 2026 · 7:15 UTCKalshi 88% · Aug 31, 2026 · 7:20 UTCKalshi 88% · Aug 31, 2026 · 7:25 UTCKalshi 88% · Aug 31, 2026 · 10:00 UTCKalshi 88% · Aug 31, 2026 · 12:45 UTCKalshi 88% · Aug 31, 2026 · 15:35 UTCKalshi 88% · Aug 31, 2026 · 18:20 UTCKalshi 88% · Aug 31, 2026 · 21:10 UTCKalshi 88% · Sep 1, 2026 · 2:50 UTCKalshi 88% · Sep 1, 2026 · 5:35 UTCKalshi 94% · Sep 1, 2026 · 14:56 UTCKalshi 94% · Sep 1, 2026 · 14:56 UTCKalshi 94% · Sep 1, 2026 · 15:01 UTCKalshi 93% · Sep 1, 2026 · 15:06 UTCKalshi 94% · Sep 1, 2026 · 17:51 UTCKalshi 93% · Sep 1, 2026 · 20:41 UTCKalshi 93% · Sep 1, 2026 · 21:04 UTCKalshi 93% · Sep 1, 2026 · 23:35 UTCKalshi 93% · Sep 2, 2026 · 2:25 UTCKalshi 91% · Sep 2, 2026 · 5:10 UTCKalshi 91% · Sep 2, 2026 · 5:10 UTCKalshi 91% · Sep 2, 2026 · 5:15 UTCKalshi 90% · Sep 2, 2026 · 5:20 UTCKalshi 91% · Sep 2, 2026 · 7:55 UTCKalshi 91% · Sep 2, 2026 · 10:40 UTCKalshi 89% · Sep 2, 2026 · 13:26 UTCKalshi 89% · Sep 2, 2026 · 13:26 UTCKalshi 89% · Sep 2, 2026 · 13:31 UTCKalshi 89% · Sep 2, 2026 · 13:36 UTCKalshi 89% · Sep 2, 2026 · 16:21 UTCKalshi 89% · Sep 2, 2026 · 19:16 UTCKalshi 88% · Sep 2, 2026 · 22:11 UTCKalshi 88% · Sep 3, 2026 · 4:01 UTCKalshi 88% · Sep 3, 2026 · 6:51 UTCKalshi 88% · Sep 3, 2026 · 9:41 UTCKalshi 88% · Sep 3, 2026 · 12:31 UTCKalshi 89% · Sep 3, 2026 · 15:21 UTCKalshi 89% · Sep 3, 2026 · 18:21 UTCKalshi 85% · Sep 3, 2026 · 21:16 UTCKalshi 85% · Sep 3, 2026 · 21:16 UTCKalshi 85% · Sep 3, 2026 · 21:21 UTCKalshi 85% · Sep 3, 2026 · 21:26 UTCKalshi 79% · Sep 4, 2026 · 0:16 UTCKalshi 79% · Sep 4, 2026 · 0:16 UTCKalshi 79% · Sep 4, 2026 · 0:21 UTCKalshi 79% · Sep 4, 2026 · 0:26 UTCKalshi 79% · Sep 4, 2026 · 3:31 UTCKalshi 78% · Sep 4, 2026 · 7:36 UTCKalshi 73% · Sep 4, 2026 · 11:51 UTCKalshi 73% · Sep 4, 2026 · 11:51 UTCKalshi 73% · Sep 4, 2026 · 11:56 UTCKalshi 73% · Sep 4, 2026 · 12:01 UTCKalshi 69% · Sep 4, 2026 · 20:25 UTCKalshi 69% · Sep 5, 2026 · 0:50 UTCKalshi 69% · Sep 5, 2026 · 5:26 UTCKalshi 69% · Sep 5, 2026 · 10:10 UTCKalshi 69% · Sep 5, 2026 · 14:55 UTCKalshi 72% · Sep 5, 2026 · 21:15 UTCKalshi 72% · Sep 5, 2026 · 21:16 UTCKalshi 72% · Sep 5, 2026 · 21:19 UTCKalshi 72% · Sep 5, 2026 · 21:23 UTCKalshi 72% · Sep 5, 2026 · 21:27 UTCPolymarket 95.6% · Aug 30, 2026 · 1:45 UTCPolymarket 95.5% · Aug 30, 2026 · 7:50 UTCPolymarket 95.7% · Aug 30, 2026 · 10:40 UTCPolymarket 92.9% · Aug 30, 2026 · 13:35 UTCPolymarket 95.4% · Aug 30, 2026 · 16:35 UTCPolymarket 95.8% · Aug 30, 2026 · 19:45 UTCPolymarket 95.9% · Aug 31, 2026 · 1:30 UTCPolymarket 93.7% · Aug 31, 2026 · 4:25 UTCPolymarket 93.7% · Aug 31, 2026 · 4:25 UTCPolymarket 93.7% · Aug 31, 2026 · 4:30 UTCPolymarket 93.7% · Aug 31, 2026 · 4:35 UTCPolymarket 93.8% · Aug 31, 2026 · 7:15 UTCPolymarket 93.8% · Aug 31, 2026 · 7:15 UTCPolymarket 93.8% · Aug 31, 2026 · 7:20 UTCPolymarket 93.8% · Aug 31, 2026 · 7:25 UTCPolymarket 93.8% · Aug 31, 2026 · 10:00 UTCPolymarket 93.4% · Aug 31, 2026 · 12:45 UTCPolymarket 96.1% · Aug 31, 2026 · 15:35 UTCPolymarket 95.4% · Aug 31, 2026 · 18:20 UTCPolymarket 95.1% · Aug 31, 2026 · 21:10 UTCPolymarket 97.8% · Sep 1, 2026 · 2:50 UTCPolymarket 95.6% · Sep 1, 2026 · 5:35 UTCPolymarket 94.1% · Sep 1, 2026 · 14:56 UTCPolymarket 94.1% · Sep 1, 2026 · 14:56 UTCPolymarket 94% · Sep 1, 2026 · 15:01 UTCPolymarket 93.8% · Sep 1, 2026 · 15:06 UTCPolymarket 87% · Sep 1, 2026 · 17:51 UTCPolymarket 85.2% · Sep 1, 2026 · 20:41 UTCPolymarket 97.7% · Sep 1, 2026 · 21:04 UTCPolymarket 84.7% · Sep 1, 2026 · 23:35 UTCPolymarket 84.7% · Sep 2, 2026 · 2:25 UTCPolymarket 98.4% · Sep 2, 2026 · 5:10 UTCPolymarket 98.4% · Sep 2, 2026 · 5:10 UTCPolymarket 98.1% · Sep 2, 2026 · 5:15 UTCPolymarket 98% · Sep 2, 2026 · 5:20 UTCPolymarket 98% · Sep 2, 2026 · 7:55 UTCPolymarket 95.7% · Sep 2, 2026 · 10:40 UTCPolymarket 96.7% · Sep 2, 2026 · 13:26 UTCPolymarket 96.7% · Sep 2, 2026 · 13:26 UTCPolymarket 96.7% · Sep 2, 2026 · 13:31 UTCPolymarket 96.8% · Sep 2, 2026 · 13:36 UTCPolymarket 94.1% · Sep 2, 2026 · 16:21 UTCPolymarket 97.2% · Sep 2, 2026 · 19:16 UTCPolymarket 95.4% · Sep 2, 2026 · 22:11 UTCPolymarket 96.8% · Sep 3, 2026 · 4:01 UTCPolymarket 96.8% · Sep 3, 2026 · 6:51 UTCPolymarket 97.3% · Sep 3, 2026 · 9:41 UTCPolymarket 94.7% · Sep 3, 2026 · 12:31 UTCPolymarket 95.4% · Sep 3, 2026 · 15:21 UTCPolymarket 91.9% · Sep 3, 2026 · 18:21 UTCPolymarket 96.7% · Sep 3, 2026 · 21:16 UTCPolymarket 96.7% · Sep 3, 2026 · 21:16 UTCPolymarket 96.9% · Sep 3, 2026 · 21:21 UTCPolymarket 97% · Sep 3, 2026 · 21:26 UTCPolymarket 96.6% · Sep 4, 2026 · 0:16 UTCPolymarket 96.6% · Sep 4, 2026 · 0:16 UTCPolymarket 96.7% · Sep 4, 2026 · 0:21 UTCPolymarket 96.5% · Sep 4, 2026 · 0:26 UTCPolymarket 92.7% · Sep 4, 2026 · 3:31 UTCPolymarket 92.8% · Sep 4, 2026 · 7:36 UTCPolymarket 88.9% · Sep 4, 2026 · 11:51 UTCPolymarket 88.9% · Sep 4, 2026 · 11:51 UTCPolymarket 88.9% · Sep 4, 2026 · 11:56 UTCPolymarket 88.9% · Sep 4, 2026 · 12:01 UTCPolymarket 77.4% · Sep 4, 2026 · 20:25 UTCPolymarket 78.4% · Sep 5, 2026 · 0:50 UTCPolymarket 77.2% · Sep 5, 2026 · 5:26 UTCPolymarket 78.4% · Sep 5, 2026 · 10:10 UTCPolymarket 76.8% · Sep 5, 2026 · 14:55 UTCPolymarket 80.5% · Sep 5, 2026 · 21:15 UTCPolymarket 80.5% · Sep 5, 2026 · 21:16 UTCPolymarket 80.5% · Sep 5, 2026 · 21:19 UTCPolymarket 80.5% · Sep 5, 2026 · 21:23 UTCPolymarket 80.5% · Sep 5, 2026 · 21:27 UTCAug 30 · 01:45Sep 05 · 21:27 UTC
The next test

What could change the picture?

Dates and conditions as reviewed for this edition.

September 10–11 → September 16

The Fed: conviction or a close call?

Producer inflation on September 10 and consumer inflation on September 11, both at 8:30 a.m. Eastern, precede the September 16 Fed decision. Watch whether hike prices pull away from hold prices on both venues after the releases. A continuing near-tie would weaken the conviction reading.

The next agreement update / By December 31

Rigetti: a proposal or a qualifying deal?

Look for an official announcement documenting a completed qualifying acquisition or a binding equity agreement before the contract’s December 31 deadline. Repeating the funding proposal would not resolve the same uncertainty. The reviewed documents do not provide a date for that next agreement.

An occasional NFL extra

Did the weekend change the season?

Championship expectations, playoff paths, and what injuries change about the weeks ahead. An extraordinary last-play comeback can also qualify, with recorded prices and a verified result. Only when the evidence earns an extra edition.

Explore NFL markets →
The archive

What we saw, and when.

Weekly briefingThe Fed’s close call. Rigetti’s unfinished deal.Aug 29 – Sep 5, 20262 stories Earlier price reviewAug 29 – Sep 5, 20266 moves
Our editorial standard

A move needs a meaning.

We choose consequential questions that remain unresolved, then put recorded prices alongside reporting that helps explain what is at stake.

What earns a story?

A meaningful change in expectations, a revealing disagreement, or a gap between the headline and the contract’s actual terms. Each story needs sourced context, our interpretation, a countercase and a specific next test. A large price change by itself is not enough.

How often do you publish?

One weekly briefing, with two to four researched stories. An occasional post-weekend NFL edition examines changes to championship, playoff or season expectations. An exceptional, verified last-play comeback can also earn a place; routine in-game swings do not. We skip editions when the reporting is not ready.

What makes a comeback worth covering?

A remarkable win on the final play, with a recorded low price just before it happened. We show the price path, the decisive play and, where complete trade records are available, how much was spent buying the winning outcome at the unlikely price.

A separate $100 illustration shows the total returned and profit before fees, assuming a full purchase at that price held through a winning settlement. It is not a claim about anyone’s actual winnings. Missing trade data is labelled unavailable.

What is automated and what is reviewed?

Our weekly process prepares a research shortlist. Publication requires a fresh editorial review tied to the exact observations used in the article, source links and a check of the exact contract status. Forward-looking stories require an open outcome; comeback stories require confirmed winning settlements. A shortlist never publishes itself as analysis.

How should I read the numbers?

Charts show recorded Kalshi YES asks and Polymarket sell-side asks as percentages, before fees. Both venues must share an observation timestamp. Start and end values use three-observation medians. The 0–100% scale is fixed; invalid observations and gaps longer than six hours break the line. Comeback charts break at gaps over one minute and show the final result separately from purchase prices. A price move is not an investment return.

Separate outcome prices are not normalized probabilities. Trade totals are gross activity, not net inflows or a forecast. Our interpretation is identified separately from sourced facts.

Download the edition’s price observations →
How do you handle uncertainty and older editions?

We distinguish a possible explanation from an established cause. We retain dated editions and their recorded evidence, so readers can see what was known at publication. Older movement roundups remain in the archive; they use the earlier editorial format.