Here's an uncomfortable question making the rounds in investing circles this weekend: Are you actually analyzing the Iran situation objectively, or are you just rationalizing whatever position you already hold?

If you're sitting on cash or short the market, suddenly every news headline looks like evidence the war will escalate and markets will crater further. If you're fully invested, every diplomatic signal looks like a ceasefire is imminent and a bottom is in.

This isn't cynicism—it's confirmation bias, and it's one of the most expensive cognitive traps in investing.

Behavioral finance research has documented this pattern extensively. Once we've taken a position, our brains become remarkably skilled at finding evidence that supports our decision and dismissing evidence that contradicts it. It's not conscious dishonesty—it's how human pattern recognition works when we have something valuable at stake.

The phenomenon gets worse during periods of uncertainty and high volatility. When the future is genuinely unclear—as it is right now with an active military conflict affecting global oil supplies—there's enough ambiguous information for both bulls and bears to construct compelling narratives.

Bears can point to escalating strikes on oil infrastructure, the Strait of Hormuz remaining disrupted, and historical precedents where Middle Eastern conflicts lasted years. Bulls can point to diplomatic back-channels, the economic pain incentive for all sides to negotiate, and the fact that markets are forward-looking and may have already priced in the worst.

They're both using real information. But which information you weight most heavily correlates suspiciously well with your portfolio position.

Here's how to tell if you're falling into this trap. Ask yourself: If I held the opposite position, would I find these same data points convincing? If you're in cash and reading about oil refineries being hit as confirmation you're right, would you read the same news as a buying opportunity if you were already invested? If you're fully invested and interpreting every diplomatic statement as positive, would you do the same if you were short?

The research shows most people can't honestly answer yes. We're not analyzing new information objectively—we're auditing it for whether it supports our existing position.