904-NMS-1220-15-F4.DOC
server then least loaded with traffic, the fastest access; those
downstream had to deal with increasingly burdened servers as more
and more persons connected, with a corresponding increase in
latency. Switching on servers ahead of time allowed some to gain an
advantage and a priority. To mitigate this, the NSE took steps to
balance its server loads and to more evenly distribute them.
Technically, the letter suggests, this should have been enough. But
(and this appears to be the nub of it) some started connecting to
backup real-time servers with nil traffic, even though these were to
be used only in emergencies, thus enabling quicker access to market
data; and the NSE’s co-location services facilitated this early-bird
data or information receipt.
9.
It is in this scenario that we have to assess the concern that
seems to have been expressed by the Defendants in their articles.
They say that entities permitted co-location access gained a small
and perhaps infinitesimal time advantage in receiving advance
market information. This allowed a select handful to, as the
Defendants put it, ‘front-run’ the rest of the market. In other
words, knowing that a stock was likely to move, say, in a particular
direction, algo trades would be triggered to take advantage of that
advance information long before other individual traders lacking the
advantage of co-location could capitalize or move on that
information. The result is not as negligible, the Defendants say, as
might appear. There is, firstly, some question of whether these algo
trades worked to inject liquidity into the market or whether they
created distortions in the real underlying value of the stocks in
question. The point, they seem to suggest, is that the select handful
got a very considerable advantage simply because they received
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