In the short time period since the Twitter IPO its stock price has performed as if it was riding a roller coaster. Various factors have contributed to its meteoric rise to a peak, followed by a rapid decline. Market factors unrelated to the fair market value of Twitter shares have influenced the price movement. Prior to the Twitter offering, IPOs were in a state of great demand (which occurs from time-to-time) with investors of most IPOs being allocated less shares than requested. Many investors were purchasing the unallocated portion of their subscription as soon as the IPO commenced trading. The Twitter offering was highly glamorized by the financial press. Twitter shares like those of many other IPOs immediately skyrocketed in price. Twitter has many loyal users who were unable to obtain an allotment on the IPO and they and other investors for various reasons elected to buy the shares in the after market. Chart theorists added fuel to the fire as they determined buy points as the Twitter stock price rose and gathered momentum. As the stock price rose far above the IPO price it attracted short sellers. However, as ofter occurs when short sellers sell into a rapidly rising market, they get squeezed and panic, one-at -a-time, and cover their shorts at ever increasing prices, thereby driving the stock price higher.
When the price of Twitter shares peaked and started to decline, various factors, acting in a manner similar to the way that gravity effects a roller coaster car, precipitated the decline. Some analysts withdrew their support based upon market capitalization and recommended sale . Stop loss orders, which have become fashionable and which were placed at various levels during the share price increase, began to be executed at declining prices, creating selling pressure. Chart theorists interpreted sell signals. Short sellers, who follow the analyst reports, know about the existence of stop loss orders and understand chart theory, exacerbated the decline by selling short at declining prices. As the stock declined, margin calls and tax loss considerations came into play and some unsophisticated stockholders sold in panic.
Like a roller coaster the ride will stop at the bottom. If Twitter can generate revenues and profitability from its large number of followers, its shares will begin to rise again. If, as I expect, the rise occurs, the SEC should conduct an investigation as to when every short sale took place to try to determine the role of short selling in exaggerating stock market declines.
Only fools, who do not understand the interplay of short selling with chart theory, stop-loss orders, margin calls, and panic selling in market downturns, think that short selling is a price discovery mechanism that leads to pricing efficiencies. In fact, it generally exaggerates price swings. Short selling is often used as a manipulative device and it should be banned or carefully regulated. The up-tick rule should be reinstated immediately. In addition, all short selling in a security should be banned when its price has declined substantially from its 52 week high.
You should read the short chapter entitled “Short Selling and Stock Market Manipulation” in my book entitled “Perpetuating American Greatness After The Fiscal Cliff”. My earlier book entitled “Homeland Security And Economic Prosperity” written after 9/11 and the bursting of the .com bubble, but while the up-tick rule was still in effect, proposed strengthening the up-tick rule to prevent bear market raids by short sellers. Subsequently, the SEC ignored the bear raids in 2007 and 2008 and ignorantly eliminated the up-tick rule. My original paper on the subject was written while I was a third year law school student in 1963. Since then SEC regulation of bear raids has gotten worse, not better.
For months we listened to investment experts on financial news programs advise investors to protect their positions against a market correction by using stop loss orders. As stock prices rose investors, who heeded the advice of these experts, placed stop loss orders at increasing price levels. As a result an inverse ladder of stop loss orders was created. When international currency issues and other factors set off a moderate market downturn some of the highest stop loss orders were automatically converted into sell orders and the market decline accelerated. Short sellers who have been on the side lines were able to accelerate the decline by selling short on downticks. They know the price on stock charts that chartists interpret as a sell point and begin to sell short on downticks in an attempt to encourage sales by chartists, the execution of stop loss orders and panic by fearful investors. The combination of stop loss orders, chart theory, short selling on downticks and ultimately panic and margin calls may set off a stampede leading to further market declines. Domestic and international economic growth are important to stock market activity, but the above described technical factors have a significant impact during a stock market market decline that may, because of the wealth effect and fear, lead to a downturn in economic activity.