Highest volatility period-5 oscillators

All known period-5 oscillators with volatility of at least 0.8.

Rank	Name	Image	Rotor Size	Volatility
1	Statorless p5		156	1
2	Four-fold variant of Scot's p5		292	0.973
3	unnamed		52	0.96875
4	Swine		86	0.959
5	unnamed		152	0.950
6	unnamed		96	0.944
7	Scot's p5		28	0.939
8	unnamed		244	0.8714
9	Pentoad 2		26	0.871
10	unnamed		120	0.8285714...
11	Pseudo-barberpole		15	0.824
12	Voldiag		100	0.821
13	Nivasch's Pseudo-barberpole		28	0.813
14	unnamed		56	0.8181...
15	Eppstein's new p5		73	0.802
16	unnamed		120	0.803...
17	Octagon 2		16	0.800

For purposes of this table, an extensible oscillator is only represented in its minimal form. This allows for one iteration of the inserted piece, as in Swine and Pentoad 2. Without this restriction oscillators with volatility arbitrarily close to 1 can be constructed by extending Pentoad or Electric fence.

See also

• Highest volatility period-6 oscillators
• Highest volatility period-7 oscillators