1/9/2019 66.52 0.00 0.00 0.00 54.61 0 157 Nothing trades in the $10 calls on 1/09/2019 and OI ends at 157 1/10/2019 0.00 50.90 55.50 50.90 52.10 510 154 1/10 510 trade and OI drops to 154 - either three got exercised or some of the volume was closing. The OI should change for the trades done on the 10th on the 11th. 1/11/2019 62.05 53.75 53.75 48.84 48.96 62 620 Open interest pops to 620 - 154+510 and thinking naively OI should have gone 664 so either some got exercised or there were closing trades. 1/14/2019 62.36 50.00 50.84 50.00 50.84 26 388 1/14 the OI drops on almost no volume so let's assume it is all exercise. Here's the whole dataset, but I know it is difficult to decipher. These are the 2021 $10 calls. 1/16/201959.8444.8947.0043.2445.167183671/15/201958.260.000.000.0050.8403671/14/201962.3650.0050.8450.0050.84263881/11/201962.0553.7553.7548.8448.96626201/10/20190.0050.9055.5050.9052.105101541/9/201966.520.000.000.0054.6101571/8/201968.8055.8055.8054.5354.61141481/7/201970.950.000.000.0075.7001481/4/201973.540.000.000.0075.7001481/3/201983.300.000.000.0075.7001481/2/201977.920.000.000.0075.70014812/31/201881.730.000.000.0075.70014812/28/201886.640.000.000.0075.70014812/27/201886.5380.2580.2575.3575.70814012/26/201881.4973.5573.5570.6070.60214012/24/201888.080.000.000.0053.05014012/21/201882.590.000.000.0053.05014012/20/201876.720.000.000.0053.05014012/19/201870.8153.5853.5853.0353.052712712/18/201871.7156.5857.5556.3557.554812012/17/20180.000.000.000.000.000012/14/20180.000.000.000.000.000012/13/201862.240.000.000.000.000012/12/20180.000.000.000.0051.15011912/11/201864.490.000.000.000.000012/10/20180.000.000.000.000.000012/7/20180.000.000.000.0035.50012012/6/20180.000.000.000.0035.50012012/5/201856.980.000.000.0035.50012012/4/20180.000.000.000.000.000012/3/20180.000.000.000.000.000011/30/201852.230.000.000.0045.46011911/29/20180.000.000.000.0045.46011911/28/20180.000.000.000.000.000011/27/201855.380.000.000.000.000011/26/201857.020.000.000.0045.46011911/23/201862.280.000.000.000.000011/21/201861.490.000.000.000.000011/20/201863.840.000.000.0045.46011911/19/201858.930.000.000.0045.46011911/16/20180.0045.4645.4645.4645.461110811/15/201858.140.000.000.0025.15010811/14/201859.010.000.000.000.000011/13/201856.890.000.000.000.000011/9/20180.000.000.000.000.000011/8/201847.900.000.000.000.000011/7/201848.470.000.000.000.000011/6/201854.300.000.000.000.000011/5/201857.150.000.000.0025.15010811/2/201857.710.000.000.000.000011/1/201857.470.000.000.000.000010/31/201860.230.000.000.000.000010/30/201863.320.000.000.0025.15010810/29/201866.800.000.000.0025.15010810/26/201866.550.000.000.000.000010/25/201860.930.000.000.0025.15010810/24/201863.980.000.000.0025.15010810/23/201856.320.000.000.0025.15010810/22/201853.380.000.000.0025.15010810/19/201852.760.000.000.0025.15010810/18/201853.490.000.000.0025.15010810/17/201848.730.000.000.0025.15010810/16/201847.870.000.000.0025.15010810/15/201853.440.000.000.0025.15010810/12/201852.220.000.000.0025.15010810/11/201859.100.000.000.0025.15010810/10/201852.310.000.000.0025.15010810/9/201841.950.000.000.0025.15010810/8/201840.850.000.000.0025.150108
As a trader of mostly naked call and puts sometimes spread, box is quite unfamiliar, but it looks like a dramatic. I am going to take it as a case study.
I understand this job opening was recently posted. Surely unrelated! https://careers.robinhood.com/openings?gh_jid=1512073