Short Position down, because... M*. commented:
"not surprisingly, short position came down. numbers below are as of 5-15-19 (prior to earnings report.)
consolidated short position = 761,908 (as of May 15, 2019)
(down 147,664 from the end of April)"
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Why?
Simple. The WTB were no longer so cheap.
So people were selling their warrants, and buying back short share positions,
unwinding the arbitrage
Read more at https://stockhouse.com/companies/bullboard?symbol=t.gcm&postid=29766131#XgeDsSdaM4UKBq5P.99