So, the S&P 500 had a bit of a Thursday. It closed at 6,830.71, down 0.56%, which basically erased most of Wednesday's nice little recovery. Why? Two old friends came back to the party: rising oil prices and that nagging uncertainty about what's happening with Iran.

But here's where it gets interesting. The prediction market Polymarket (POL) is sending its clearest signal all week. For the first time since Monday, when the whole U.S.-Israeli situation with Iran rattled markets, the majority of early bets are saying "Up." The market for Friday's S&P 500 open is currently sitting at 65% "Up" and 35% "Down." That's a notable shift in sentiment.

Why That Betting Line Matters

Those odds aren't just random guesses. They reflect the genuine, nail-biting uncertainty around the single biggest economic number of the week: the February non-farm payrolls report, due Friday morning. Economists surveyed by Dow Jones expect the economy added 50,000 jobs last month, with the unemployment rate expected to hold steady at 4.3%.

It's a classic high-stakes scenario. A strong jobs number gives the Federal Reserve more reason to keep interest rates higher for longer. A weak one suddenly makes everyone start talking about rate cuts again. Traders have already been pushing their forecasts for that first Fed cut further into the summer; the odds of a cut at the June meeting are now priced at less than one-in-three.

Then there's the oil wildcard. Despite U.S. promises to escort tankers, hundreds of ships are reportedly still stuck in the Persian Gulf. A Reuters report suggested Iran has enough drones to create havoc in the region for months. This tension showed up in prices: WTI crude oil futures settled 8.5% higher at $81.01 on Thursday, while Brent crude futures rose by nearly 5%. Early Friday, WTI was at $80.45 per barrel, with Brent hovering around $85.

Unsurprisingly, the yield on the 10-year Treasury rose to 4.14% on Thursday. When energy prices climb, inflation expectations—and the yields that follow them—tend to rise right along with them.

The Case For The Bulls

It's not all doom, gloom, and geopolitical risk. There's a counter-argument for resilience. Weekly initial jobless claims came in at 213,000 on Thursday, unchanged from the prior week and actually below the 215,000 estimate. That points to a labor market that's still holding up pretty well just ahead of the big payrolls number.

Adding to that, the ADP private payrolls report earlier this week beat expectations. It showed U.S. private employers added 63,000 jobs in February, well above the 48,000 consensus and a sharp rebound from January's downwardly revised 11,000.

Early Friday, the market was leaning into that optimism, with S&P 500 futures up 0.24% at 6,851.50.

A Lesson From Thursday's Wild Swing: It's worth remembering how fickle this pre-market sentiment can be. On Thursday, the benchmark index opened down at 6,851.08, and the prediction market resolved "Down" after $309,343 in traded volume. The wild part? The "Up" bet held a 54% majority as late as two hours before the opening bell. Then, in a dramatic 45-minute swing, it collapsed to just 14.5%. That kind of late flip suggests traders were repositioning fast as futures deteriorated right before the open. So, a 65% "Up" call on Friday morning is a signal, but it's not a guarantee—things can change in a hurry when the real data hits the tape.