WBA: Insiders vs. Shorts

The most recent short interest data was recently released for the 12/29/2017 settlement date, and Walgreens Boots Alliance Inc (WBA) is the #154 most shorted of the S&P 500 components, based on 5.12 "days to cover." There are a number of ways to look at short data, but one metric that we find particularly useful is the "days to cover" because it considers both the total shares short and the average daily volume of shares typically traded. The number of shares short is then divided by the average daily volume, to express the total number of trading days it would take to close out all of the open short positions if every share traded represented a short position being closed.

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In the case of Walgreens Boots Alliance Inc ( WBA), the total short interest at the 12/29/2017 settlement date was 21,833,161 shares, which compares to the average daily trading volume of just 4,268,329 shares, for a "days to cover" ratio of 5.12.

When short sellers eventually cover their positions, by definition there must be buying activity because a share that is currently sold short must be purchased to be covered. At the present levels of short interest, if from this point forward every single WBA share traded represented a short position being closed, then at the average daily volume of 4,268,329 shares it would only be during the 6th trading day that every short position would be closed.

So it would stand to reason that should some unexpectedly good news come out, and short sellers did not have 6 days of patience but instead wanted to cover their short positions very suddenly, that situation could result in sending the stock higher until the higher price produces enough sellers to generate the necessary volume to close out those positions quickly.

Walgreens Boots Alliance Inc ( WBA) has something relatively rare for a stock with this much short interest, that being insiders taking the other side of the trade. Looking back over the trailing six month period, WBA has seen 3 different instances of insider buying, as summarized by the table below:

Purchased Insider Title Shares Price/Share Value
10/26/2017 Janice M. Babiak Director 600 $69.64 $41,784.00
10/26/2017 Ginger L. Graham Director 2,150 $69.86 $150,199.00
10/26/2017 John Anthony Lederer Director 20,000 $67.00 $1,340,000.00

Below is a chart showing the "days to cover" for WBA over time:

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And looking at the chart below, WBA's low point in its 52 week range is $63.82 per share, with $88 as the 52 week high point — that compares with a last trade of $76.28.

Walgreens Boots Alliance Inc Moving Averages Chart

In recent trading, shares of Walgreens Boots Alliance Inc ( WBA) were changing hands at $76.28/share.

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