8Factor Report #6: A 28-Vote Lead, Priced Like a Landslide
Scott Colom leads Cindy Hyde-Smith by a few dozen votes out of 945,000, and Hyde-Smith needs only 49% of what's left to catch him. Kalshi and Polymarket both have Colom at 80%. We graded the market and then tried to break our own call.
*Predictagon 8Factor Report · No. 6 · November 4, 2026 · Read-only analysis. Not financial advice.*
The market at a glance
| Kalshi | Polymarket | |
|---|---|---|
| Scott Colom (D) | 80¢ bid / 81¢ ask | 79.1¢ bid / 80.6¢ ask |
| Cindy Hyde-Smith (R) | 19¢ / 20¢ | 19.5¢ / 20.0¢ |
| Volume | ~18.9M contracts across both sides; ~16.7M in the last 24h | ~$3.89M lifetime; ~$2.99M in the last 24h |
Trade it on Polymarket → · Trade it on Kalshi →
The 8Factor scorecard
| Factor | What it asks | Grade |
|---|---|---|
| 1 · Compare | Do the venues disagree? | C |
| 2 · Fair value | What's the real probability? | C |
| 3 · Net edge | Is anything tradable after costs? | B− |
| 4 · Timing | When does it close? | B− |
| Red team | The precinct map · Affidavit ballots · No recount law · Who judges | 4 live risks |
Verdict: no arbitrage, and the market is pricing information the count doesn't show. Both venues agree on 80%. The public count says something much closer to a coin flip: the candidates are tied at 48.9% each with about 44,000 votes left. Our fair value for Colom is 62%, so Hyde-Smith at 19.5–20¢ is the value side, with low confidence. Most of the 18-point gap is a bet that the outstanding ballots lean Colom.
Why this market, why now
Forecasters rated this race Likely or Safe Republican. Then it became the closest Senate race in the country.
Hyde-Smith led for most of the night. Colom closed the gap as late returns came in from Hinds County and from majority-Black counties in the Delta and southwest Mississippi. In Hinds alone, Colom had 61,793 votes to Hyde-Smith's 14,702. At 12:05 AM Central, unofficial returns showed:
| Candidate | Votes | Share |
|---|---|---|
| Scott Colom (D) | 462,779 | 48.9% |
| Cindy Hyde-Smith (R, incumbent) | 462,751 | 48.9% |
| Ty Pinkins (I) | 19,934 | 2.1% |
That's a 28-vote lead. NBC's 6:03 AM ET update shows 945,534 votes counted, 95.6% of the expected vote in, and about 44,000 left. NBC says Hyde-Smith needs 49% of the remaining vote to catch Colom.
If the lead holds, Colom would be the first Democrat to win a U.S. Senate race in Mississippi since John Stennis in 1982. Prediction-market traders made this the busiest race of the morning: Polymarket did about $3 million in 24 hours on a market that had done under $1 million before Tuesday.
Factor 1 · Compare: Grade C
Question: do the venues disagree?
No. 80/81¢ on Kalshi and 79.1/80.6¢ on Polymarket, under a point apart. One curiosity: Polymarket's separate margin-of-victory market prices "Democrat wins" at about 63% mid (40¢ bid / 85.3¢ ask). That book is too wide to mean much, but it's a reminder that thinner markets on the same race aren't nearly as confident.
Factor 2 · Fair value: Grade C
Question: what's the real probability Colom ends up ahead in the certified count?
> AI fair value (Colom): 48% low · 62% mid · 76% high. Confidence: C.
Start with the public arithmetic. About 44,000 votes are outstanding. Pinkins takes about 2%, so Hyde-Smith needing 49% of the remainder means she needs roughly an even split with Colom. On the public numbers alone, this is close to 50/50.
Why Colom is still the favorite:
Why 80% is too confident:
Divergence:
| Venue | Market (Colom) | AI mid | Divergence |
|---|---|---|---|
| Kalshi | 80.5¢ (mid) | 62% | −18.5 pts |
| Polymarket | 79.85¢ (mid) | 62% | −17.9 pts |
Flipped around, we put Hyde-Smith at about 38% against a market price near 20¢.
Factor 3 · Net edge: Grade B−
Net Edge = divergence × log10(volume + 1)
The cross-venue lock (per $1 payout):
| Step | Cents |
|---|---|
| Buy Hyde-Smith YES on Kalshi | 20.0 |
| Buy Colom YES on Polymarket | 80.6 |
| Total cost | 100.6 |
| Net edge (before fees) | −0.6 → PAPER |
There's no lock. The venues are too well aligned.
The directional trade: Hyde-Smith at 19.5–20¢ against a 38% fair value is nearly a 90% expected-value cushion, on books deep enough for real size. It's a B−, not higher, because our confidence is only C. The market may simply know which precincts are outstanding, and we don't.
Factor 4 · Timing: Grade B−
The count should finish within days. If it stays this close, resolution could move to the courts or the Senate, and venue contracts could sit unresolved for weeks: B−.
The Red Team: four ways this call breaks
Our call is "the market is about 18 points too confident in Colom." Here's how that's wrong.
Red 1 · The market can see the precinct map
Traders watching county-by-county reporting may know the 44,000 outstanding votes are mostly in Hinds, the Delta and other places Colom is winning by wide margins. If so, his lead grows with every update, and 80% is fair or even cheap. This is the most likely way our analysis is wrong.
Watch: the next county-level updates, especially Hinds and the Delta, and whether Colom's lead grows past a few hundred votes.
Red 2 · Affidavit ballots break hard one way
Affidavit ballots get reviewed one by one. If several thousand are accepted and they lean strongly toward one candidate, they can decide a race this close by themselves.
Watch: county-by-county affidavit ballot counts and acceptance rates during the canvass.
Red 3 · No recount law means litigation
With no statutory recount, a losing candidate's options are lawsuits over specific ballots or counting procedures, and appeals to the Senate. Courts move slowly, and a court-ordered review can shift totals by more than 28 votes.
Watch: any filings by either campaign, and statements from the Secretary of State about canvass timing.
Red 4 · The plumbing: who decides the winner
Venue contracts resolve on the certified or officially declared winner. If certification is challenged, or the Senate investigates, the venues' resolution rules on delays and disputed results may not match, and money could be stuck for weeks.
Watch: each venue's resolution source and deadline language before trading.
Bottom line
| Cross-venue signal | PAPER (venues within ~1 pt) |
| Directional view | Hyde-Smith underpriced: fair ~38% vs market ~20¢ |
| AI fair value (Colom) | 62% (band 48–76%) |
| Clock | Days for the count; weeks if it goes to court |
| Biggest risk | Red 1: the outstanding vote is concentrated in Colom's strongholds |
On the public numbers, this race is close to a coin flip with a slight Colom lean. The market prices it as a near-lock. Either traders know something specific about where the last 44,000 ballots are, or they're extrapolating the late-night swing too far. With no recount law, a race this close may not end at the canvass at all.
New 8Factor Reports publish every week at Predictagon.com/8Factor.
Data notes and methodology
Sources: NBC News: Mississippi Senate results · Mississippi Free Press: Colom leads by 28 votes · msindy.org: Colom pulls ahead as race goes uncalled · Election Law Blog: Resolving a Senate dispute in Mississippi · Ballotpedia: Mississippi Senate 2026 · Polymarket: Mississippi Senate Election Winner