{"id":243540,"date":"2026-05-28T03:25:11","date_gmt":"2026-05-28T07:25:11","guid":{"rendered":"https:\/\/ibkrcampus.com\/campus\/?p=243540"},"modified":"2026-05-28T03:39:51","modified_gmt":"2026-05-28T07:39:51","slug":"chart-advisor-why-heavy-short-interest-is-really-a-buy-signal","status":"publish","type":"post","link":"https:\/\/www.interactivebrokers.com\/campus\/traders-insight\/securities\/macro\/chart-advisor-why-heavy-short-interest-is-really-a-buy-signal\/","title":{"rendered":"Chart Advisor: Why Heavy Short Interest Is Really A Buy Signal"},"content":{"rendered":"\n

Investopedia is partnering with All Star Charts on this newsletter. \u00a0The contents of this newsletter are for informational and educational purposes only.<\/em><\/p>\n\n\n\n

Why Heavy Short Interest Is Really A Buy Signal<\/strong><\/h2>\n\n\n\n

There’s a chart we’ve been staring at for a few weeks, and it’s worth a closer look.<\/p>\n\n\n\n

Groupon currently has roughly\u00a060% of its tradable supply<\/strong><\/a>\u00a0sold short. Days to cover, the metric that estimates how long it would take all those shorts to exit, is sitting around seven.\u00a0<\/p>\n\n\n\n

By most standards, those readings are not high. They’re extreme.<\/p>\n\n\n\n

For context, GameStop’s short interest peaked above 100% of its float before the 2021 squeeze. <\/p>\n\n\n\n

Volkswagen’s locked-up float in 2008 was in the same ballpark as Porsche’s stake when it was revealed,\u00a0and the stock quadrupled in two days.\u00a0<\/a><\/p>\n\n\n\n

Groupon is not at those levels. But it is closer to them than 99% of the rest of the market.<\/p>\n\n\n\n

Here’s the chart:<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

What you’re looking at is a stock that has been building a base for more than a year, repeatedly testing the same level near $19, and is now trying to break through. The $19 line matters because it’s a polarity zone<\/strong>, a price the stock has used as both ceiling and floor at different points in its history. <\/p>\n\n\n\n

Multiple anchored measurements<\/a>\u00a0of average buyer cost basis, based on the 2021 and 2025 highs, fall within the same range.<\/p>\n\n\n\n

In English, many independent measurements point to $19 as the line that matters.<\/p>\n\n\n\n

Why Heavy Short Interest Creates a Tailwind<\/strong><\/p>\n\n\n\n

Most people think of short sellers as bears. They are, in the moment. But every open short is a future buy order.<\/p>\n\n\n\n

When you short a stock, you borrow shares, sell them at the current price, and plan to buy them back later at a lower price. The shares have to be returned eventually. That return, the closing trade, is a purchase. Every short position is a buy that hasn’t happened yet, sitting in the book waiting for a reason to execute.<\/p>\n\n\n\n

When a stock keeps falling, shorts can take their time. They’re profitable. They have no urgency.<\/p>\n\n\n\n

When the stock starts rising, the math flips. Losses on a short are theoretically unlimited because a stock can keep going up forever. Brokers issue margin calls. Risk managers force exits. And the only way to close a short is to buy.<\/p>\n\n\n\n

Each forced purchase pushes price higher, which forces more shorts to cover, which pushes price higher still. That feedback loop is what people mean when they\u00a0say short squeeze.\u00a0<\/a><\/p>\n\n\n\n

It’s not magic. It’s just the math of forced buying compounding.<\/p>\n\n\n\n

The reason squeezes look violent is that the fuel is finite. Once most of the shorts are out, the artificial buying pressure disappears, and the stock often retraces hard. <\/p>\n\n\n\n

Volkswagen gave back most of its squeeze gains within months. GameStop is still trading well below its 2021 peak. Squeezes are events, not trends.<\/p>\n\n\n\n

What Makes the Groupon Setup Different<\/strong><\/p>\n\n\n\n

You can’t squeeze a stock that no one is shorting, and you can’t squeeze one that nobody wants to buy. Groupon currently has both ingredients.<\/p>\n\n\n\n

The short side is crowded. <\/p>\n\n\n\n

Sixty percent of the float is the kind of number that gets attention. The long side has been quietly building a base for over a year, which means buyers have been showing up at the same price levels patiently, without panic, while the bears piled on.<\/p>\n\n\n\n

That is the setup the team flags every time it shows up. It doesn’t guarantee anything. Plenty of heavily shorted stocks stay heavily shorted because the bears are right.<\/p>\n\n\n\n

But if Groupon closes meaningfully above $19 and holds, the short interest data suggests there is real potential for forced covering to accelerate the move. <\/p>\n\n\n\n

If it fails at that level and rolls over, the setup is invalidated, and the bears keep their thesis. The level itself tells you which side was right.<\/p>\n\n\n\n

What to Do With This<\/strong><\/p>\n\n\n\n

A short squeeze isn’t a strategy. It’s a market event you can recognize in advance if you know what to look for.<\/p>\n\n\n\n

The practical lesson is simpler than the mechanical. <\/p>\n\n\n\n

When a stock has unusual short interest and is approaching a level it has repeatedly failed to clear, the question stops being whether the bears are right about the company. <\/p>\n\n\n\n

It becomes: who is positioned for what comes next?<\/p>\n\n\n\n

That question matters whether you ever trade Groupon or not. The same setup shows up across the market several times a year, and the investors who recognize the math early are the ones who don’t get caught on the wrong side when it resolves.<\/p>\n\n\n\n

We’ll be watching $19.<\/p>\n\n\n\n

Tomorrow at 5 PM ET, our Senior Crypto Analyst Louis Sykes is walking through what he calls the $100 Trillion Trade<\/strong>. <\/p>\n\n\n\n

It’s a tokenization shift the SEC cleared in December that goes live in July. Louis covers digital assets full-time, and he’s laid out exactly which company he thinks is positioned to benefit and why he’s already invested.<\/p>\n\n\n\n

Reserve your seat for tomorrow’s call<\/strong><\/a><\/p>\n\n\n\n

—<\/p>\n\n\n\n

Originally posted 27th May 2026<\/p>\n\n\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

Investopedia is partnering with All Star Charts on this newsletter. \u00a0The contents of this newsletter are for informational and educational purposes only. Why Heavy Short Interest Is Really A Buy Signal There’s a chart we’ve been staring at for a few weeks, and it’s worth a closer look. Groupon currently has roughly\u00a060% of its tradable […]<\/p>\n","protected":false},"author":186,"featured_media":243541,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":true,"footnotes":""},"categories":[18,6,8,9,22,23,26,3],"tags":[3352,6964,11106,814],"contributors-categories":[13686],"class_list":{"0":"post-243540","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-macro","8":"category-north-america","9":"category-region","10":"category-securities","11":"category-stocks","12":"category-technical-analysis","13":"category-text-articles","14":"category-traders-insight","15":"tag-gme","16":"tag-grpn","17":"tag-porsche","18":"tag-volkswagen","19":"contributors-categories-investopedia"},"pp_statuses_selecting_workflow":false,"pp_workflow_action":"current","pp_status_selection":"publish","acf":[],"yoast_head":"\nChart Advisor: Why Heavy Short Interest Is Really A Buy Signal<\/title>\n<meta name=\"description\" content=\"Groupon currently has roughly\u00a060% of its tradable supply\u00a0sold short. 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