Beware the exploit lurking within Hive-Engine:

Hidden within Hive-Engine lies a devious flaw—a bug born of rounding errors. Exploit it effortlessly by manipulating transactions with a mere 0.00000001 SWAP.HIVE. In markets where spreads run narrow, your advantage grows.

Consider the SPS market, a prime specimen:
Sell 0.00000017 SPS at 0.02974381 SWAP.HIVE apiece, netting 5.0564477e-9. Hive-Engine rounds this up to 1e-8.
Simultaneously, purchase 0.00000049 SPS at 0.02999 SWAP.HIVE each, totaling 1.46951e-8, rounded down to 1e-8.

Thus, you sell 0.00000017 SPS and buy 0.00000049 SPS, with your SWAP.HIVE balance unchanged—yielding a profit of 3.2e-7 SPS per transaction.

Repeat this maneuver, and watch your profits grow exponentially.
Use this knowledge wisely.

Our diligent attempts to warn the developers about this exploit and present potential solutions repeatedly through various channels were met with silence.