Sure. The trade works when a normalized skew figure is seen (skew model/ATM vol-line). The gigi is in the skew model. I heard it in passing on an FX Majors/vol-desk (pre-EU) when I was in my early 20s and have applied it to eq-index and SN vols. The structure itself was found while I was tinkering with combinations while trying to reduce the haircut figure to something approaching a box/conversion arb while adding vega.
I had an index SL on two CPIs ago and the variation margin was $72K and the position earned $75K on the news. I have a complex order book position but I don't trade it as a COB as it would be reverse engineered.
Pardon my ignorance; but what do you mean by "COB"? Also reverse engineered by whom, the brokerage?
I am also intrigued by the number of strikes by looking at your screenshots. My rudimentary readings into swaps suggest that you need a lot of strikes. You seem to be managing to structure them with lot less. I have not started modeling them so probably missing the finer details.
Thanks.
