zBearCallLadder {bullishTrader}

Calculates Profit and Loss (PnL) per share (or unit of the underlying) at expiration and Breakeven point for Bear Call Ladder and draws its graph in the Plots tab.

Description

This is a vertical spread consisting of a short position in (usually) a close to ATM (at the money) call option with a strike price X1L, a long position in an OTM (out of the money) call option with a strike price X2M, and a long position in another OTM call option with a higher strike price X3H. A bear call ladder typically arises when a bear call spread (a bearish strategy) goes wrong (the stock trades higher), so the trader buys another OTM call option (with the strike price X1L) to reverse from the initial bearish outlook to emerging bullish trends. On initiation, this is a net credit Strategy and results in net cash inflow as premium received on shorting a call (at lower strike) is more than premium paid on buying two calls (buying one call at somewhat middle priced strike X2M and then buying one more call at higher strike X3H) (Kakushadze & Serur, 2018).

Usage

zBearCallLadder(
  ST,
  X1L,
  X2M,
  X3H,
  CX1L,
  CX2M,
  CX3H,
  hl = 0,
  hu = 1.5,
  xlab = "Spot Price ($) at Expiration",
  ylab = " Profit / Loss [ PnL ] at Expiration ($)",
  main = "Bear Call Ladder ",
  sub = "bullishTrader / MaheshP Kumar"
)

Arguments

ST

Spot Price at time T.

X1L

Lower Strike Price or eXercise price.

X2M

Medium Strike Price or eXercise price.

X3H

Higher Strike Price or eXercise price.

CX1L

Call Premium received for the sold Call at Lower Strike.

CX2M

Call Premium paid for the bought Call at Medium Strike.

CX3H

Call Premium paid for the bought Call at higher Strike .

hl

lower bound value for setting lower limit of X axis displaying spot price.

hu

upper bound value for setting upper limit of X axis displaying spot price.

xlab

X axis label.

ylab

Y axis label.

main

Title of the Graph.

sub

Subtitle of the Graph.

Details

According to conceptual details given by Cohen (2015), and a closed form solution provided by Kakushadze and Serur (2018), this method is developed, and the given examples are created, to compute per share Profit and Loss and Breakeven (BE) point at expiration for Bear Call Ladder and draw its graph in the Plots tab.

Value

Returns a graph Bear Call Ladder.

Author(s)

MaheshP Kumar, [e-mail]

References

Cohen, G. (2015). The Bible of Options Strategies (2nd ed.). Pearson Technology Group.
Kakushadze, Z., & Serur, J. A. (2018, August 17). 151 Trading Strategies. Palgrave Macmillan. https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3247865

Examples

zBearCallLadder(19,19,20,24,4.20,2.40,0.80)
zBearCallLadder(50,50,52,56,8.1,3.70,2.50,hl=0.8,hu=1.2)
zBearCallLadder(1000,1000,1005,1010,20,11,4,hl=0.995,hu=1.025)