A quick calculation:~500 people signing up for the special.=7500...

A quick calculation:

~500 people signing up for the special.
=7500 free trades
Some could have been used in the June quarter.
Say 6000 are used in the Sept quarter.
The 2 months of Jul-Aug beat the 3 months of Q419 in terms of number of trades.
So Q120 may have 87500 trades (my guess).
6000/87500 trades = 6.9% being free trades. Trades usually makes up 50% of revenue, so it'd put a 3.5% dent in revenue.
My cashflow projection changes from -$300k to -$350k.
Future quarters would be back to the normal trajectory, since the free trades would be used up.

For the recent announcement of Jul-Aug beating Q419 trades count, that means 2 months breaking 56,000 trades.

Worst case scenario: the whole 7500 free trades were used in that 2 month period. That would mean 48,500 paid trades, 7500 free trades. The previous quarter had an average of 18,800 trades per month = 37,600 for 2 months. 48,500 paid trades would still mean 29% growth (which is a good growth rate, in line with the previous 2 quarters' growth rates).

Best case scenario: 1500 free trades were used in the 2 month period. That would mean 54,500 paid trades, 1500 free trades. The previous quarter had an average of 18,800 trades per month = 37,600 for 2 months. 54,500 paid trades would mean 45% growth (highest growth in years).

So if growth in paid trades is 29-45% (assuming September meets or beats Jul-Aug), then I'll be happy for it to have beaten Q419's 28.1% growth (possibly including some free trades in June).