Stop Exit for ZS Put Calendar

To follow is specific trade exit details:

Stock / Symbol: Zscaller / ZS;

Option Strategy: put calendar spread;
Trade Entry Date / Price: May 31, 2019 / $67.70;
Price at Trade Exit: $71.06

Reasoning: Upside stop hit at $70. Exiting here for a relatively small loss. Currently, the Greeks are: a negative delta of -8.6, a negative theta of -0.03 and a positive vega of 3.93.

Trade Exit Details:

STC 1 ZS 19Jul2019 60 put
BTC 1 ZS 21Jun2019 60 put

for a min net credit of $0.85 per contract
(GTC order, limit order). The mid is currently at a credit of $0.95 . I was filled at $0.95.

Max Risk: $140
Max Reward: $215 or 153% by Jun 21st at $60
Profit Range: Between $54.65 and $66.65 by May 24th
Suggested Downside Stop @ $57
Suggested Upside Stop @ $70.00
Realized Profit / Loss: ($45) (not including commissions)

Positive Theta