ENOC: Insiders vs. Shorts

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In the case of EnerNOC Inc (ENOC), the total short interest at the 03/31/2016 settlement date was 3,817,459 shares, which compares to the average daily trading volume of just 343,930 shares, for a "days to cover" ratio of 11.10.

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 ENOC share traded represented a short position being closed, then at the average daily volume of 343,930 shares it would only be during the 12th 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 12 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.

EnerNOC Inc (ENOC) 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, ENOC has seen 5 different instances of insider buying, as summarized by the table below:

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

And looking at the chart below, ENOC's low point in its 52 week range is $2.9201 per share, with $11.21 as the 52 week high point — that compares with a last trade of $6.90.

In recent trading, shares of EnerNOC Inc (ENOC) were changing hands at $6.90/share.