Add training workflow, datasets, and runbook

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Finding Mispriced Options 157
to eyeball the ATM volatility for the one- and two-month contracts.
3. If there is a large bid-ask spread, the relevant forward volatility
to use is equal to the implied volatility we want to transact. In
other words, use the ask implied volatility if you are thinking
about gaining exposure and the bid implied volatility if you are
thinking about accepting exposure (the online application shows
cones for both the bid implied volatility and the ask implied
volatility).
Basically, these rules are just saying, “If you want to know what the
option market is expecting the future price range of a stock to be, find a
nice, liquid near ATM strikes implied volatility and use that. ” Most op-
tion trading is done in a tight band around the present ATM mark and for
expirations from zero to three months out. By looking at the most heavily
traded implied volatility numbers, we are using the markets price-discov-
ery function to the fullest. Big announcements sometimes can throw off
the true volatility picture, which is why we try to avoid gathering infor -
mation from options in these cases (e.g., legal decisions, Food and Drug
Administration trial decisions, particularly impactful quarterly earnings
announcements, and so on).
If I was looking at Oracle, I would probably choose the $32-strike
options expiring in September. These are the 50-delta options with
61 days to expiration, and there is not much of a difference between
calls and puts or between the bid and ask. The August expiration op-
tions look a bit suspicious to me considering that their implied volatility
is a couple of percentage points below that of the others. It probably
doesnt make a big difference which you use, though. We are trying to
find opportunities that are severely mispriced, not trying to split hairs
of a couple of percentage points. All things considered, I would prob-
ably use a number somewhere around 22 percent for Oracles forward
volatility.
C12.02 11.75 N/A 55.427% 0.9897 C0.00 0.02 N/A 50.831%- 0.01032011.90
C11.03 10.70 N/A 123.903% 0.9869 C0.01 0.03 N/A 48.233%- 0.01312112.35
C10.04 9.50 N/A 64.054% 0.9834 C0.03 0.05 37.572% 46.993%- 0.01660.012210.10
C0.06 0.04 20.455% 21.147% 0.0463 C5.03 5.55 N/A 36.111%- 0.95584.95370.05
1.65 1.65 22.720% 23.311% 0.6325 0.84 +0.07 0.82 22.989% 23.384%- 0.36790.80311.68-0.13
1.06 1.08 22.019% 22.407% 0.4997 1.23 +0.05 1.25 22.284% 22.672%- 0.50081.23321.10-0.12
0.66 0.65 21.378% 21.813% 0.3606 1.88 +0.16 1.82 21.453% 22.106%- 0.64021.79330.67-0.07
0.02 0.01 21.354% 23.409% 0.0155 C6.99 7.55 N/A 44.342%- 0.98716.85390.02+0.01
0.03 0.01 19.050% 22.144% 0.0266 C6.00 6.30 17.134% 30.947%- 0.97576.15380.030.00
SEP 20 ´13