defined majority of optimization algorithm

frontend/src/procedures.js

@@ -1,9 +1,27 @@
 /*
 Collect contiguous ranges. These are where the underlying is expected to be at the front-month.
-For each strike in the contiguous ranges, collect all front-month/back-month combinations
+Start with an empty array of calendars (the "position"). (The array will contain the final, optimized position.)
-For each of these front-month/back-month combinations, calculate PNL (by %-return) assuming the underlying is at each strike in the contiguous ranges
+Starting at the leftmost strike that's within the user-defined spot-price range, find the cheapest (though not necessarily most capital-efficient) front-month/back-month combo, and append it to the calendar-array.
-For each of these potential underlying close-prices, choose the best front-month/back-month combo.
+  Check profitability, as follows:
-For each ...
+  Check profitability assuming the underlying expires at the leftmost spot-price of the leftmost range. The next spot-prices to check are at the strikes _within_ the range, followed by the rightmost spot-price of the range; followed by doing the same for the rest of the ranges.
+  If, at "expiration" (i.e. the front-month), the position is profitable at this spot-price [*1]:
+    If there are more spot-prices to check to the right of this one:
+      Check the next spot-price.
+    Else (i.e. if there are _not_ more spot-prices to check to the right of this one):
+      That means we're "covered". Return position.
+  Else (i.e. if, at expiration, the position is _not_ profitable at this spot-price):
+    Try to shift the rightmost calendar to the right (regardless of whether it's towards or away from the current spot-price) by one strike.
+    Check profitability starting from the leftmost spot-price-at-expiration, up to and including the spot-price we're currently evaluating:
+    If the tweaked position is profitable at this spot-price:
+      If we're holding by the spot-price we're currently evaluating:
+        Keep the tweaked position, and continue with it as we would with a "profitable-thus-far" position (i.e. [*1]).
+      Else (i.e. if we're _not yet_ holding by the spot-price we're currently evaluating):
+        Continue checking with the next spot-price.
+    Else (i.e. if the tweaked position is _not_ profitable at this spot-price):
+      If we're holding by the spot-price we're currently evaluating:
+        Shift, by one more strike, the rightmost calendar in the position.
+      Else if we're holding by the 
+      
 */
 
 export const calculateBestCombinationOfCalendars(){