CECE: Insiders vs. Shorts

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In the case of CECO Environmental Corp. (CECE), the total short interest at the 03/31/2016 settlement date was 1,494,922 shares, which compares to the average daily trading volume of just 148,426 shares, for a "days to cover" ratio of 10.07.

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 CECE share traded represented a short position being closed, then at the average daily volume of 148,426 shares it would only be during the 11th 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 11 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.

CECO Environmental Corp. (CECE) 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, CECE has seen 3 different instances of insider buying, as summarized by the table below:

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

And looking at the chart below, CECE's low point in its 52 week range is $5.60 per share, with $11.76 as the 52 week high point — that compares with a last trade of $7.79.

In recent trading, shares of CECO Environmental Corp. (CECE) were changing hands at $7.79/share.