Understanding Short Selling: Strategies and Market Dynamics

Name: Understanding Short Selling: Strategies and Market Dynamics
Rating: 4.8 (10 reviews)

Learning made simple: short squeeze, hedge funds, put options, short interest and more

Created byTalent Growth Lab

Last updated 2/2025

English

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What you'll learn

Why did GameStop not follow fundamental valuation models?
How does short selling work?
How to identify most shorted stocks?
What is a short squeeze and how it applies to GameStop?
What is a gamma squeeze and how it applies to GameStop?
How is GameStop different to Volkswagen squeeze?
How do put options work?
What is short interest?
How do hedge funds work?
How long can a short seller hold its exposure?
Why is it so hard to beat the market index?
What are the long-term implications of GameStop phenomenon?
How are call options different to put options?
What is the timeline of GameStop capital market events?
What is a margin account?
How are the margin account funding requirements calculated?

Course content

4 sections • 23 lectures • 1h 24m total length

Course Preview1:46
Explore how short selling works, hedge funds' strategies, and funding requirements. Examine the GameStop saga, short squeeze vs gamma squeeze, and options-driven trading using short-interest data.
Disclaimer - Terms of Use - Please Read1:25
Review the course terms, legal disclaimer, and no investment advice notice before accessing content; understand that information is general, not tailored, and is provided as is.
Short selling explained4:14
Learn how short selling works by borrowing shares, selling them high, and buying them back later. See how profits arise from price moves and note the stock loan fee.
Margin account requirements5:32
Explore how margin accounts require collateral to short stocks, with initial margin 150% and maintenance margin 130%, plus borrowing costs and stock loan fees.
Stock price goes up - margin call4:48
This lecture explains how rising stock prices trigger margin calls in short selling, detailing initial and maintenance margins, short value changes, and the need to cover or add funds.
Stock price goes down - margin release1:34
When stock moves down for the short seller, the broker releases margin; with a short value of $800 and maintenance margin of $1,040, $760 becomes withdrawable.
Short sellers profit and loss profile1:41
Short sellers face increasing losses as the stock price rises, with potentially unlimited downside, while profits accrue as prices fall; the maximum profit equals the stock price itself.
How do hedge funds fit into this?4:10
Hedge funds specialize in short selling and publish research to drive price discovery by highlighting overvaluation, fraud, or outdated models, though downside is unlimited and risk is very high.
How long can a short seller hold its exposure?2:59
Short exposure has no fixed duration; lenders can request return at any time, and brokers may force close on margin calls, while inventory lending earns interest.

GameStop put options explained10:08
Explore how put options can replicate short selling by giving a right to sell at a strike price before expiry, illustrated with GameStop break-even at 132.
Options theoretical value3:16
Hedge funds can profit from put options by selling the option as the stock falls toward the strike price, with put prices rising toward theoretical value calculated by pricing formulas.
Call options explained1:38
Explore how call options let you buy stocks at a predetermined strike price before expiration. In the example, buy at 90 and sell at 325 for a profit.

What is a gamma squeeze?1:51
A gamma squeeze occurs when investors buy call options and option writers hedge by purchasing stocks, pushing prices higher as strike prices approach.
Short squeeze explained2:14
Explore how a short squeeze happens when a stock jumps, forcing short sellers to cover as margin requirements rise, sometimes with a gamma squeeze.
Is GameStop short squeeze a new thing?3:09
The lecture shows GameStop’s squeeze isn’t entirely new, contrasting Porsche’s Volkswagen incident, where the float nearly vanished, with today’s retail-driven squeezes enabled by low-cost platforms and social media.
Short interest explained2:20
Learn how to identify heavily shorted stocks via short interest, free float, and days to cover. Understand how shifts in short interest signal bearish or bullish sentiment and short squeeze.
Most shorted stocks in the US5:35
Analyze the most shorted U.S. stocks, focusing on GameStop’s elevated short interest, free float dynamics, and the role of synthetic loans and borrow fees in driving demand and potential squeezes.
Short interest data sources2:24
Short interest data comes from shortside.com and exchange feeds such as Nasdaq and NYSE, with biweekly lag and paid access; combining lending data with exchange data yields near real-time insights.
Can an individual investor beat the market?5:16
Beat the market over the long term by recognizing market efficiency and the risk-adjusted returns of indices like the S&P 500; public data and fast trading erode advantage.

Share price evolution3:29
Explore the share price evolution of GameStop, from 2.57 to as high as 483 dollars, tracing the covid-19 crash recovery and January 2021 surge.
Timeline of events3:41
Trace the GameStop timeline from Jill's 2019 investment to Ryan Cohen's 2021 digital strategy shift, as Reddit's Wall Street Bets discussions and hedge funds' short bets drive market moves.
Why would brokers curb trade?2:57
Brokers curb trades to meet cash margin and clearing house requirements during volatile markets. Robin Hood faced option delivery risk and GameStop inventory, risking liquidity and prompting trading restrictions.
What are the long term implications?8:25
Analyze long term consequences of GameStop, including capital raises and the short squeeze, and how share price movements relate to underlying business, winners and losers among traders and hedge funds.

Requirements

None

Description

GameStop has taken over the world with the rise in its share price driven by retail traders with the help of social media, which turned into a real nightmare for hedge fund. This course is aimed at those who want to have good understanding and talk comfortably about the most recent developments in equity capital markets surrounding GameStop.

By signing up to this course you will:

Learn about the reasons why GameStop's share price stopped following fundamental valuation models

Be able to identify most shorted stocks

Explain the theory behind short squeeze and gamma squeeze

Learn how GameStop is different to previous short squeezes such as Volkswagen

Get an overview of key events and the timeline of GameStop's short squeeze

Understand how long a short selling position can last

Gain knowledge about put and call options

Explain key short selling measures such as short interest

Understand the long-term implications of GameStop phenomenon

Learn why it is so hard to beat the market index on risk-adjusted returns basis over the long term

What is a margin account and why it is required for short selling

How margin account funding requirements are calculated

TERMS OF USE - DISCLAIMER

The video, audio and other content of this course is for informational purposes only, you should not construe any such information or other material as legal, tax, investment, financial, or other advice. Nothing contained in this course constitutes a solicitation, recommendation, endorsement, or offer to buy or sell any securities or other financial instruments. All content in this course is information of a general nature and does not address the circumstances of any particular individual or entity. Nothing in the course constitutes professional and/or financial advice. The course and its content are provided “as is” and without warranties of any kind. You bear all risks associated with the use of the course and its content, including without limitation, any reliance on the accuracy, completeness or usefulness of any content available in this course. Producers of this course are not liable for any direct, indirect, incidental, consequential, special or punitive damages under any theory of liability.

Who this course is for:

Students
Business professionals
Investors

Understanding Short Selling: Strategies and Market Dynamics

What you'll learn

Explore related topics

Course content

Short Selling9 lectures • 28min

Put and Call Options3 lectures • 15min

Short Squeeze7 lectures • 23min

GameStop4 lectures • 19min

Requirements

Description

Who this course is for: