ts_sum(subtract(implied_volatility_call_120, implied_volatility_put_90), 10)

group_neutralize(ts_sum(subtract(implied_volatility_call_120, implied_volatility_put_90), 10), group)

winsorize(ts_sum(subtract(implied_volatility_call_120, implied_volatility_put_90), 10), 3)

if_else(ts_std_dev(subtract(implied_volatility_call_120, implied_volatility_put_90), 10) > 10, 0, ts_sum(subtract(implied_volatility_call_120, implied_volatility_put_90), 10))

ts_zscore(ts_sum(subtract(implied_volatility_call_120, implied_volatility_put_90), 10), 20)

ts_rank(ts_sum(subtract(implied_volatility_call_120, implied_volatility_put_90), 10), 20)

scale(ts_sum(subtract(implied_volatility_call_120, implied_volatility_put_90), 10))

scale(group_neutralize(ts_sum(subtract(implied_volatility_call_120, implied_volatility_put_90), 10), group))

scale(group_neutralize(ts_zscore(ts_sum(subtract(implied_volatility_call_120, implied_volatility_put_90), 10), 20), group))

winsorize(group_neutralize(ts_zscore(ts_sum(subtract(implied_volatility_call_120, implied_volatility_put_90), 10), 20), group), 3)

ts_sum(subtract(implied_volatility_call_120, implied_volatility_put_90), 5)

ts_sum(subtract(implied_volatility_call_120, implied_volatility_put_90), 15)

ts_sum(subtract(implied_volatility_call_120, ts_mean(implied_volatility_put_90, 5)), 10)

ts_sum(subtract(ts_mean(implied_volatility_call_120, 5), implied_volatility_put_90), 10)

ts_sum(ts_delta(subtract(implied_volatility_call_120, implied_volatility_put_90), 1), 10)

ts_sum(ts_zscore(subtract(implied_volatility_call_120, implied_volatility_put_90), 10), 10)

ts_sum(ts_rank(subtract(implied_volatility_call_120, implied_volatility_put_90), 10), 10)

ts_sum(ts_scale(subtract(implied_volatility_call_120, implied_volatility_put_90), 5), 10)

ts_sum(divide(subtract(implied_volatility_call_120, implied_volatility_put_90), ts_std_dev(implied_volatility_call_120, 10)), 10)

ts_sum(ts_backfill(subtract(implied_volatility_call_120, implied_volatility_put_90), 5), 10)