Oct

12

We use quantitative tools - "counting" - to measure and analyze markets, and I enjoy coming across scientific measurements that are new to me and also amazing in scope, such as the sverdrup. The sverdrup is a unit describing the volume of water transport in ocean currents. One sverdrup is a volume flux of one million cubic meters per second (1 Sv = 10^6 m^3 per second). Named after Harald Sverdrup.

From the web:

The strongest ocean current measured in sverdrups is the Antarctic Circumpolar Current (ACC), the largest and most powerful current system on Earth. The ACC is a wind-driven current that flows clockwise around Antarctica, uninterrupted by landmasses.

Measurements of the ACC's volume transport vary, but all figures show it is in a class of its own:
Estimates of the ACC's mean transport range from 100 to over 170 sverdrups (Sv). One study found an average transport of 173.3 Sv through the Drake Passage, the current's narrowest choke point. To put this in perspective, this is over 100 times the combined flow of all the world's rivers.

The graphic shows how relatively narrow the Drake Passage is.

We certainly measure volume in markets. Are there specific flows and currents? Choke points?

Asindu Drileba writes:

In a book recommended by The Chair, This is the Road to Stock Market Success, the author mentions that (paraphrased), "When the trading volume of a stock changes by a large amount, yet the price doesn't move by much, it is time to get out of the market."


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