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In the spectrum of optimal virulence, vertical transmission tends to evolve benign symbiosis, so is a critical concept for evolutionary medicine. Because a pathogen's ability to pass from mother to child depends significantly on the hosts' ability to reproduce, pathogens' transmissibility tends to be inversely related to their virulence.
In options trading, a vertical spread is an options strategy involving buying and selling of multiple options of the same underlying security, same expiration date ...
Vertical transmission can be intracellular (e.g. transovarial), or extracellular (for example through post-embryonic contact between parents and offspring). Both intracellular and extracellular vertical transmission can be considered a form of non-genetic inheritance or parental effect.
The iron condor is an options trading strategy utilizing two vertical spreads – a put spread and a call spread with the same expiration and four different strikes. A long iron condor is essentially selling both sides of the underlying instrument by simultaneously shorting the same number of calls and puts, then covering each position with the purchase of further out of the money call(s) and ...
For example, one uses a credit spread as a conservative strategy designed to earn modest income for the trader while also having losses strictly limited. It involves simultaneously buying and selling (writing) options on the same security/index in the same month, but at different strike prices. (This is also a vertical spread)
The first spread Andrews comes to for an NFL game is simple math, using the power ratings: If Team A is 90, Team B is 91 and at home with a 2.5-point home-field advantage, the line is Team B -3.5.
In options trading, a bull spread is a bullish, vertical spread options strategy that is designed to profit from a moderate rise in the price of the underlying security. Because of put–call parity , a bull spread can be constructed using either put options or call options .
For example, when he approached me, I would ask for a “sit” and reward it by tossing the kibble. The next round, I asked for a down and rewarded it with a kibble. 7.