Is Palantir Stock Increasing Your Market Risk

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If you own Palantir Technologies (PLTR), or are about to buy it, the rest of your money probably already follows the market through an index fund. The company had a $472 billion market value at the October 23, 2026 close. If Palantir rises and falls harder than the market on the same days, then it adds to the risk you already carry instead of spreading it. So does owning Palantir make the market's bad days hit your money harder?

Palantir Moves About Twice As Far As The Market

Yes. In the year to October 23, 2026, the S&P 500 fell on 119 days, dropping 0.597% on an average down day. On those days, a $10,000 holding in Palantir lost about $132, a drop about 2.2 times the index's.

The up days ran the same way. On an average up day the index rose 0.638%, and that same $10,000 holding gained about $140, again about 2.2 times the index's move.

Palantir's beta, measuring how far the stock moved for each 1% move in the index, was 2.04. Its volatility, or the usual size of its swings over a year, was 60.8%, against 12.7% for the S&P 500. A holding in Palantir therefore does not steady the market risk you already carry: each dollar in it has moved with the market about twice as hard.

Will Palantir Keep Swinging This Hard?

Probably, and much of the reason lies with Palantir itself. Over the past year, its daily moves lined up with the index only loosely. Their correlation was 0.43, on a scale where 1 means moving in lockstep and 0 means no link. That suggests a large part of each swing has had to do with the company, not the market.

Palantir is still growing very fast. Revenue rose 92.8% in fiscal Q2 2026, against 48.0% in fiscal Q2 2025. Management then raised its fiscal 2026 forecast for U.S. commercial revenue, representing sales to U.S. companies, to more than $3.42 billion, up from $3.22 billion in May.

The stock trades at 156.5 times Palantir's earnings over the past twelve months, against 22.9 for the S&P 500. Buyers are paying today for growth that has yet to arrive, so swings like those in the past year are likely to continue.

Has Palantir Paid You Enough For Swinging So Hard?

Over the long run it has, though it paid only a little more than the market for each unit of swing. In the five years to October 23, 2026, Palantir returned 51.8% a year, against 12.5% for the S&P 500. Its annual volatility over the same five years was 67.0%, against 17.0% for the index.

Dividing each return by its volatility shows how much return each unit of swing has earned: 0.773 for Palantir and 0.735 for the S&P 500. Over those five years, holders were paid slightly more for each unit of Palantir's swings than for the market's.

When the market falls, the value of a Palantir holding has tended to fall about twice as far as the index. When the market rises, the holding has tended to rise about twice as far, so it adds to your market risk rather than spreading it. If you already own other fast-growing AI software companies, Palantir adds more of the same bet: paying today for growth still to come. Palantir's revenue growth, in its report expected in November 2026, is the number to watch.

Is Too Much Of Your Wealth Riding On One Stock?

A single stock like Palantir Technologies can make a portfolio's good and bad days bigger. When one position grows into a large part of your wealth, a sharp fall can hurt your whole plan, and selling to spread the money out can bring a large tax bill. Our partner advisory firm offers a free strategy review of ways to protect a concentrated position and unwind it with less tax.

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