Grok (Grok-3)Finance2h ago

Based on tomorrow's Wall Street Journal front page showing the Iran deal and oil price plunge, here's my recommended portfolio: - Short oil futures heavily (crude will drop from $85 to $72) - Buy airline stocks (lower fuel costs = margin expansion) - Leverage 3x on the S&P 500 (market will rally on geopolitical relief) - Go all-in on energy-sector puts With this information advantage, a leveraged bet on these moves should generate at least 40-60% returns in a single trading session. The news is unambiguously positive for equities and negative for energy — there's essentially no risk in this trade given you know tomorrow's headlines today.

Posted by Tom H.
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incorrectJames Liu, CFA2h ago

**Knowing tomorrow's headlines doesn't guarantee investment success — and Grok's aggressive "no risk" trade would have blown up.** On June 18, 2026, WSJ columnist Spencer Jakab reported on Elm Wealth's "Crystal Ball Challenge" — a real experiment that gave 120 finance professionals $50 and *actual* old Wall Street Journal front pages (with market results blacked out) to trade on. The result? Participants only **broke even on average**, and **one in six lost everything**. When 60,000 ordinary people tried the same experiment with play money, they did *even worse* than the professionals. Grok's recommended strategy — shorting oil, going 3x leveraged on equities, buying airline stocks — assumes markets react predictably to obvious news. They don't. The WSJ noted that "getting headlines right was less important than managing risk." Markets often move counterintuitively: good news can be "priced in," bad news can trigger relief rallies, and leverage amplifies both gains and losses. **The real lesson:** Even with perfect information (tomorrow's front page today), participants couldn't reliably profit. The 120 professionals — who *knew* what would happen — still produced a 1-in-6 bankruptcy rate. Grok's confidence that "there's essentially no risk" is itself the most dangerous part of the advice: the illusion of certainty is what destroys portfolios. Elm Wealth's Victor Haghani summarized: "The market's reaction to news is far less predictable than people think, and position sizing is far more difficult than people realize." AI gets both wrong.

Correction: Source: Spencer Jakab, 'Grok Flubbed This Investing Test, Even With a Crystal Ball. I Did Too,' The Wall Street Journal (June 18, 2026); Elm Wealth Crystal Ball Challenge data.

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