Why Some Stocks Cost $1,000+: Splits and 13F Reading

It surprises many new investors that a single share of some companies costs more than a used car. Monolithic Power Systems trades around $1,500 a share; Booking Holdings and NVR trade in the thousands. Meanwhile household names like Apple cost a couple hundred dollars. Does the four-figure price tag mean those companies are "expensive" or better? No — and misunderstanding why is the source of two common 13F-reading mistakes.

This guide explains what a per-share price actually tells you (almost nothing on its own), why companies end up with sky-high share prices, and how stock splits can make a fund's 13F look like it traded heavily when it did nothing at all.

Share price is not the same as value

A stock's price per share is simply the company's total market value divided by the number of shares outstanding. A company worth $70 billion split into 50 million shares trades at $1,400; the same company split into 7 billion shares trades at $10. The business is identical — only the slicing differs. Per-share price tells you how finely the pie is cut, not how big the pie is or how fast it's growing.

That is why comparing two companies by share price is meaningless. To judge size you look at market capitalization; to judge valuation you look at multiples like price-to-earnings. The headline dollar figure on a quote screen is just an artifact of share count.

Why some stocks reach $1,000+ a share

Companies hit four-figure share prices mainly by choosing never to split their stock while the business grows for years. Monolithic Power rode the AI data-center buildout to roughly $1,500 a share without splitting. AutoZone and NVR have famously refused to split for decades, letting prices climb into the thousands. Some management teams view a high share price as a signal of quality and a filter that attracts long-term holders. Others, like Nvidia, do split — Nvidia ran a 10-for-1 split in 2024 — to keep shares accessible to retail buyers.

What a stock split actually does

A stock split multiplies the share count and divides the price by the same factor. In a 10-for-1 split, every share becomes ten, each worth one-tenth as much. Your total value is unchanged, the company's value is unchanged, and your percentage ownership is unchanged. A split is purely cosmetic — it makes shares cheaper per unit without making anyone richer or poorer.

The 13F trap: splits distort share-count comparisons

Here is where it matters for reading filings. A 13F reports the number of shares a fund holds. When you compare share counts across quarters to see whether a manager added or trimmed a position, a stock split in between will wreck the comparison if you don't adjust for it.

Imagine a fund held 1 million shares of a stock that did a 10-for-1 split during the quarter. Its next 13F shows 10 million shares — a 900% "increase" — even though the manager never bought a single additional share. Read literally, it looks like an enormous conviction add. In reality, nothing changed.

• Always check for splits before interpreting a large jump in share count. A clean 2x, 3x, 4x or 10x change across one quarter is a red flag for a split, not a trade.
• Dollar value is the safer cross-quarter comparison when a split is involved, since value isn't multiplied by the split ratio the way raw share counts are.
• For high-priced, never-split stocks like Monolithic Power, share counts are stable and small — so even a modest share count can represent a huge dollar position, and a small sale can be a nine-figure event.

That last point explains a recurring headline pattern: when Monolithic Power's CEO sold 40,000 shares, it made for a $59 million transaction precisely because each share was worth around $1,500. As our coverage of that sale noted, the eye-popping dollar figure was a function of the share price, not an unusually large number of shares.

The takeaway

Ignore the raw share price when judging a company — use market cap and valuation multiples instead. And when reading a 13F, never interpret a clean multiple-of-the-old-count jump in shares as buying until you've ruled out a split. Those two habits will keep you from the most common errors that high-priced stocks and splits create.

FAQ

Why do some stocks cost over $1,000 per share?

A high per-share price usually means the company has grown for years without splitting its stock. Share price equals market value divided by shares outstanding, so a company that never increases its share count sees its price climb.

Does a high share price mean a stock is expensive?

No. Per-share price reflects how many shares a company has, not its valuation. To judge whether a stock is expensive, use valuation multiples like price-to-earnings; to judge size, use market capitalization.

What does a stock split do?

A split multiplies the share count and divides the price by the same ratio. Total value, company value, and your percentage ownership are unchanged. It only makes each share cheaper per unit and is purely cosmetic.

How can a stock split distort a 13F?

A 13F reports share counts. If a stock split during the quarter, a fund's reported shares jump by the split ratio even if it never traded — a 10-for-1 split turns 1 million shares into 10 million, looking like a 900% increase.

How do I avoid mistaking a split for buying in a 13F?

Watch for clean multiple-of-the-old-count jumps in share count, like exactly 2x, 4x, or 10x in one quarter. Those usually indicate a split. Comparing dollar values rather than raw share counts also avoids the distortion.

Why was Monolithic Power's $59M insider sale only 40,000 shares?

Because Monolithic Power trades near $1,500 a share, having never split its stock. At that price, even a small share count represents a large dollar position, so 40,000 shares amounted to roughly $59 million.